Adjustable blade propeller pump
[机] 调节叶片螺浆泵
🧩 词语组成解析
blade
[bled]
n. 刀片，剑;（壳、草等的）叶片;桨叶;浮华少年;
pump
[pʌmp]
n. 抽水机;打气筒;泵;轻软舞鞋;
v. 用泵输送 ;涌出;急速摇晃;盘问;
🗣️ 情景例句
Oh, Richard, it's wonderful!
噢 Richard 太棒了
Yes, and you may stay there longer.
对，而且你也许会在那儿住久一些。
Many people in industry and the Services, who have practical experience of noise,regard any investigation of this question as a waste of time;
在工业部门工作和在军队中服役的许多人对噪音有切身的体会，他们认为对这个问题进行调查是浪费时间，