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- A tyre expands when you pump air into it. 轮胎一打气就鼓起来。
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- buoyancy pump 浮力泵
- This tire is flat; you didn't pump enough air in. 这个轮胎没气了;你并没打足气。
- We have a pump for drawing water from the well. 我们用一个水泵从井里抽水。
- The heart is analogous to a pump. 心脏和水泵有相似之处。
- Can you lend me your bicycle pump? 能把你的打气筒借给我吗？
- To move with lightness and buoyancy. 轻快活泼地移动
- Here is an old-fashioned pump for drawing water from a well. 这里有一个旧式水泵可从井里抽水。
- The state or quality of being light;buoyancy. 轻重量轻的状态或性质；浮力
- His personal buoyancy and vigour were a tonic. 他本人非常乐观，精力也很充沛，令人感到鼓舞。
- You will need to pump hard for several minutes to fill the tank. 你需用泵著实抽吸几分钟，才能把油箱灌满。
- I take up my task with buoyancy and hope. 当我挑起这个担子的时候，我是心情愉快、满怀希望的。
- Each of the balloons has its own buoyancy. 每一个气球有它自己的浮力。
- Can you lend me a pump to blow up my bicycle tyres? 你能借给我个打气筒给车胎打打气吗?
- We tested the boat for its buoyancy. 我们测试了这条船的漂浮能力。
- I take up my task in buoyancy and hope. 我精神振奋、满怀信心地承担起我的任务。
- The state or quality of being light; buoyancy. 轻:重量轻的状态或性质;浮力语源。
- Wear a life jacket or buoyancy vest. 穿救生服或者浮力背心。
- The pump sucks air out (of the vessel) through this valve. 这台泵通过这个阀门把(容器中的)空气抽出。
