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旧帖 2012-11-15 23:01:38
Post #26
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中。。。
锥齿鲨 离线 锥齿鲨

Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中。。。


旧帖 2012-11-16 00:22:36
Post #27
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中。。。
vai_q 离线 vai_q 加油!

2012.7 PUKET
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旧帖 2012-11-16 09:51:27
Post #28
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中。。。
苏拉_苏拉 离线 苏拉_苏拉 O

Octopus Second Stage

A redundant second stage that is carried by divers as a back-up in case the main second stage malfunctions. The octopus also allows air-sharing with a diver who is low on air or out of air.


The gradual release of gases (especially nitrogen) that have accumulated in a diver’s body during a dive. Off-gassing happens as ambient pressure decreases during an ascent and at the surface.

Open Circuit Scuba

An apparatus in which air is inhaled from the tank and waste gases are exhaled into the water, emitting a telltale trail of bubbles.

Open Water

A body of water that is not sheltered from naturally developing weather conditions and currents, and depths that may exceed safe diving limits.

Open-Water Diving

Recreational diving done in an open water environment other than a swimming pool. This can include lakes, ponds, rivers, oceans and quarries.


An o-shaped gasket used to create a seal between two pressurized pieces of equipment, such as between a tank valve and first stage regulator.

Oxygen (O2)

A gas that is vital to life on this planet. Oxygen makes up about 21% of the air by volume.

Oxygen Toxicity

Damage or injury caused by breathing oxygen at elevated partial pressures exceeding 1.6 ATA or around 66 meters (210 feet). The first symptoms are normally seizers and convulsions. This can lead to drowning.

Oxygen Window

Difference between total gas pressures in arterial and venous blood; exist because oxygen is partly metabolized by the tissues, so venous oxygen pressure is lower than arterial oxygen pressure.


旧帖 2012-11-16 09:52:01
Post #29
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中。。。
苏拉_苏拉 离线 苏拉_苏拉 P


Professional Association of Diving Instructors. PADI is one of the largest certifying agencies in the world.

Partial Pressure

The pressure of a single gas in a mixture of gases. It is measured as if that gas alone were present. (The total pressure of a gas mixture is the sum of the partial pressures of the gases within the mixture).


When an over pressurized lung tears at its surface, the expanding air leaks between the lung and the chest wall. This causes the lung to collapse either partially or entirely. The symptoms are the coughing up of frothy blood and severe chest pains.

Pony Bottle

A small tank of breathing gas with an independent regulator. This is for emergency use in the event a diver's main air supply fails.

Prescription Dive Mask

Special dive masks for divers who require corrective lens.


The exertion of force by one surface, substance or gas on another.

PSI (Pounds per Square Inch)

A common measurement of air pressure.

Purge Valve

A valve that allow masks to be cleared without removing the mask from the diver's face. Purge valves also allow snorkels to be cleared easily and regulators to be cleared without removing the regulator from the diver's mouth.


旧帖 2012-11-16 09:52:53
Post #30
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中。。。
苏拉_苏拉 离线 苏拉_苏拉 Q

Qualifications (Scuba)

Basic training that qualifies you to go diving without supervision.

Quick Releases

The main buckles on the BCD and weight belt are normally quick releases. They can be opened quickly in case of emergency to ditch the BCD or weight belt.



A closed-circuit system that recycles exhaled gas by filtering out carbon dioxide and replacing any oxygen metabolized by the diver. Special training and certification is required to safely use a Rebreather.

Recompression Chamber

A pressure chamber used to treat divers suffering from decompression sickness.

Recreational Scuba Diving

No Decompression Diving that takes place within certain depth (maximum recreational limit is 130 feet) and environmental limitations, as outlined by the various training agencies.


In scuba, the mechanism that supplies breathing gas from the tank to the diver. This is done by a process of pressure reduction. A regulator is made up of two parts: the first stage and the second stage.

Repetitive Dive

Any dive that takes place within a certain time frame after a previous dive. The time frame can vary depending on which dive tables are being used for dive planning. Any dive whose profile is affected by a previous dive is considered repetitive.

Residual Nitrogen

Nitrogen that remains dissolved in a diver's tissues after surfacing from a dive.

Residual Nitrogen Time

The time it would take to off-gas any extra (residual) nitrogen remaining after a dive. Residual Nitrogen Time is always taken into consideration when determining the safe duration for any repetitive dive.

Reverse Squeeze

Pain and discomfort that occurs when the middle ear or sinuses equalize on descent, but fails to release through the Eustachian tube on ascent.

Rip Current

A fast moving current running perpendicular to shore. A rip current is caused by the action of incoming waves.

Rule of Thirds

A rule of thumb used when calculating air requirements for a dive, especially for one requiring a conservative approach, such as cave diving. Use a third of the tank to get to your destination, a third to get back, and the last third belongs to your buddy in case of an emergency.


旧帖 2012-11-16 10:07:41
Post #31
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中。。。
苏拉_苏拉 离线 苏拉_苏拉 T

Tank, Diving

A steel or aluminum cylinder shaped container designed to hold compressed gas.

Tank Boot

Flat-bottomed, plastic, vinyl or rubber cap that fit over the rounded end of a scuba tank, allowing the tank to stand up.


Technical Diving International. Maine-based certification agency for technical aspects of recreational scuba.

Technical Diving

Diving with special breathing gas mixtures such as Nitrox, Trimix and Heliox. These gas mixtures help extend depth limits and dive tiles beyond the limit of recreational diving.


A layer in a body of water in which temperature changes rapidly with depth. This is normally found between a warm surface layer and colder, deeper water.

Tide Current

A current generated by the action of tides.

Tidal Cycle

The cyclic rise and fall of the shoreline sea level. This rise and fall is caused by the gravitational influence of the Moon and the Sun.


A part of the body characterized by specific characteristics, such as muscle, bone, or cartilage. The term is also used to refer to any part of the body with a specific half time for loading and unloading nitrogen or even a theoretical compartment.

Total Dive Time (TDT)

The total duration of a dive, from the start of a descent until the diver reaches the surface. TDT includes all decompression and safety stops.


A mixture of oxygen, helium and nitrogen commonly used as a breathing gas for deep diving at depths of 165 feet (50 meters).


旧帖 2012-11-16 10:08:35
Post #32
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中。。。
苏拉_苏拉 离线 苏拉_苏拉 U

Unbalanced Regulator

An unbalanced first stage regulator is affected by tank pressure. The tank pressure works to force the piston in the first stage open. As the gas in the tank diminishes, it is easier for the piston to be forced into a closed position. This makes it increasingly harder to breath from the first stage as the dive progresses. This is an older style regulator and has pretty much vanished from today's scuba gear market.

Undersuit, Thermal

A thermal underlayer used when diving with a drysuit. Thermal undersuits have special properties in the fabric that draw moisture away from the body.

U-Pattern Search

A U shape search pattern that requires on line. This type of search pattern is suitable over many different bottom terrains and is a frequently used search pattern. A search team swims along the bottom in a long straight line, turns 90 degrees and swims for a short length, and then swims another long length.


Upwelling is vertical water movement. This occurs when surface water is moved away (offshore) due to winds blowing from north top south and acting as a force on the surface waters. Because water from somewhere has to fill the space left by the offshore movement of surface water, water fills in from below, creating a vertical current of water.


Valsalva Maneuver

A method of manually equalizing the inner ear. The pressure on the inside of the eardrum is increased by closing the nasal passage (pinching the nose shut) and blowing gently, forcing air into the inner ear via the Eustachian tube.


The constriction of the blood vessels in order to reduce heat loss from the blood through the skin.


Having a gland or glands for secreting venom. Some marine animals are able to inflict a poisoned bite, sting or wound.


Dizziness and unbalanced feeling caused by unequal pressure on the ear (ear barotraumas). This condition should not be ignored. Causes may range from minor ear squeeze to perforation of the eardrum and inner ear barotraumas.


Visual Inspection Program. Standardized visual tank inspection performed by a trained equipment technician, performed annually.


The distance a diver can see underwater measured in feet or meters. Normally vertically not up and down.


旧帖 2012-11-16 10:09:56
Post #33
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中。。。
苏拉_苏拉 离线 苏拉_苏拉 W

Wall Diving

Diving on rock formations and reefs that run vertically. A vertical wall will normally run from shallow to very deep.

Water Column

The zone of water between surface and bottom of a sea, lake or river.

Water Pressure

Force per unit area exerted by the weight of water. Each 33 feet of sea water exerts a pressure equivalent to one atmosphere, or 14.7psa.


Lead weights that help a diver overcome positive buoyancy by making them sink. The combination of a weight system and BCD will allow a diver to control their buoyancy at any depth.

Wet Suit

An exposure suit made of neoprene that provides thermal protection underwater. Insulation is achieved by trapping a layer of water betweens the diver's skin and the suit.


A dive table used to plan muti-level dives.


The direction from which the wind blows, as opposed to leeward.

Working Pressure

The normal pressure at which a piece of equipment is designed to operate.


The remains of ships, aircraft or other vehicles found or placed on the ocean floor.

Wreck Diving

Diving on natural or man-made wrecks.



To swing off course. This is normally caused by bad steering or the action of the waves.


A valve that has two outlets.



The zenith is the direction pointing directly "above" a particular location. This is the point of the celestial sphere vertically above (highest point) any place or observer. The concept of "above" is more specifically defined in astronomy and meteorology as the vertical direction opposite to the net gravitational force at a given location. The opposite direction or the direction of the gravitational force is called the nadir. The term zenith also refers to the highest point reached by a celestial body during its apparent orbit around a given point of observation.

Zoom Lens

A lens that combines a range of focal lengths.


旧帖 2012-11-18 14:18:57
Post #34
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中。。。
巴伊雅 离线 巴伊雅 楼主好伟大,赞一个!
旧帖 2012-11-18 23:48:05
Post #35
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中。。。
206RC 离线 206RC 阅…………
旧帖 2012-11-22 17:05:41
Post #36
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中。。。
zhengwenf 离线 zhengwenf 盛赞~
旧帖 2013-04-30 00:31:51
Post #37
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中 ...
苏铁 离线 苏铁 赞,盼楼主坚持下去
旧帖 2013-04-30 22:28:30
Post #38
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中 ...
hey76 离线 hey76 这个不能沉,谢谢楼主
旧帖 2013-05-01 12:42:40
Post #39
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中 ...
willlinsx 离线 willlinsx 工程量大啊!!  来着辛苦啦!!!smilesmile
旧帖 2013-05-01 22:49:28
Post #40
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中 ...
boysgod 离线 boysgod LZ辛苦,非常感谢smile
旧帖 2019-04-16 20:30:10
Post #41
Re: 潜水术语: ---ABCDEFGHIJKLMN 持续更新中 ...
tdakk 离线 tdakk 工程量不小
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