1.
Hookah type diving apparatus
水面供气式潜水装具
2.
surface-supplied compressed-air-diving
水面供给的压缩空气潜水
3.
The diver came up for air again.
潜水员又露出水面换气。
4.
portable diving air compressor
便携式潜水空气压缩机
5.
A diver who comes up for air
一个升到水面呼吸空气的潜水员
6.
Divers had to rely on air pumped from the surface.
潜水员所需的空气是从水面输送的。
7.
The diver comes up for air.
潜水员升到水面呼吸空气。
8.
The zone between the water table and the surface is called the zone of aeration.
潜水面与地表之间的地带称为饱气带。
9.
anti-drawning mask
带氧气呼吸器的轻型潜水面罩
10.
compressed-air scuba
自戴式压缩空气潜水呼吸器
11.
a weighted and hermetically sealed garment supplied with air; worn by underwater divers.
一种供给氧气、密封、笨重的衣服；供水下潜水者穿着。
12.
Water table is a surface on which the presure is atmospheric.
潜水面是一个其表面上压力等于大气压力的面。
13.
An unconfined aquifer has a water table at its top and water in direct contact with the soil atmosphere.
非承压含水层在它的上面有一个潜水面且水与土壤大气直接相连。
14.
a suBmarine surfaced outside the harBor.
潜水艇在港外浮到水面。
15.
a diver issuing from the water;
从水面露出的潜水员；
16.
Below the water table is the zone of saturation.
潜水面以下就是饱水带。
17.
portable water jacket downdraft submersible pump
便携水套下吸式潜水泵
18.
diving apparatus for underwater work; has an open bottom and is supplied with compressed air.
水下作业用的潜水装置；有一个敞开的底并用压缩空气维持供应。