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- But as forward speed increases, thrust falls away until at about 450 mph, propeller efficiency is seriously impaired as the blade tips approach the speed of sound. 但是当向前的速度增加时，推力会下降直到速度到450海里/小时，当翼尖接近音速的时候螺旋桨的效率会严重削弱。
- Practical Measures for Raising Propeller Efficiency of Low Speed Mini UAV 提高小型无人机螺旋桨效率的工程方法
- Can you free the propeller from the weeds? 你能把螺旋桨上的草除掉吗?
- A piece of string has twisted round the propeller. 一根绳子缠在螺旋桨上了。
- The ship's propeller churned the waves to foam. 那条船的推进器把水浪搅动得泡沫四起。
- We must improve our efficiency as soon as possible. 我们必须尽快地提高工作效率。
- Their labor efficiency is very high. 他们的工作效率很高。
- We were most impressed with/by your efficiency. 你的工作效率很高，我们极为钦佩。
- Our goal is to achieve the maximum of efficiency. 我们的目标是取得最高的效率。
- A diploma is no guarantee of efficiency. 持有文凭不能保证工作效率一定高。
- We must concentrate our attention on efficiency. 我们必须把注意力集中在效率上。
- An efficiency expert on loan from the main office. 从总公司借调的一个效率专家
- His illness has impaired his efficiency. 生病降低了他的效率。
- The propeller will windmill and crank the engine. 螺旋浆将旋转并转动引擎的曲柄。
- The propeller turns a small D.C. generator. 螺旋桨带动一个小型直流发电机。
- No one can match up to Comrade Wang in efficiency and vigour. 有效率和干劲方面没有人比得上王同志。
- An airplane having such a propeller. 螺旋桨飞机有这样一种螺旋桨的飞机
- Such action can be justified on the grounds of greater efficiency. 以提高功效为依据可以证明采取这种措施是正确的。
- Nothing seems to be wrong with the propeller shaft. 转动轴看来没毛病。
- To propel a boat or raft with a pole. 以竿撑船用一根杆或篙推动小船或筏子
