Mountain climbers often carry oxygen tanks because the air is very thin at high altitudes.
登山者通常会携带氧气筒，因为在极高的地带空气相当稀薄。
He went alone from Camp IV to the summit and was only the second person in the world to reach the summit without oxygen.
他独自从第四基地营到峰顶，且是世界上第二个未使用氧气筒到达峰顶的人。
carbon dioxide gas fire extinguisher
二氧化碳气体灭火筒
air brake reservoir pressrue indicator
气制动贮气筒压力表
combined down cast up-take ventilator
给气、排气两用通风筒
gas cartridge operated fire extinguisher
贮气瓶式灭火器筒体内
liquid selaed drum gas flowmeter
液封转筒式气体流量计
wheel cylinder piston cup
刹车储气筒活塞皮碗
quadruped-frame supported vent stack
四腿钢架支承的排气筒
tripod-frame supported vent stack
三腿钢架支承的排气筒
He has a bicycle pump.
他有一个自行车打气筒。
Do you have a bicycle pump?
你有自行车打气筒吗？
drum for air preheaters
圆筒,空气预热器用
The chains are pressure lubricated.
滚筒开槽。滚筒的高、速端带有通风式气胎离合器。
The molecules of air would bombard all sides and both ends of the cylinder.
空气的分子会撞击圆筒的整个筒壁和上下两端。
She buow up the flat tyre with a bicycle pump
她用自行车打气筒给瘪了的轮胎打气
She blow up the flat tyre with a bicycle pump.
她用自行车打气筒给瘪了的轮胎打气。
She blew up the flat tyre with a bicycle pump.
她用自行车打气筒给瘪了的轮胎打气.