Variable-delivery rotory pump
[化] 可变排量旋转泵
🧩 词语组成解析
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
Well, maybe your dad and I could take you fishing with us.
嗯， 也许你爸爸和我可以带你去钓鱼。
Friends are lost by calling often and calling seldom.
交往过密过疏，都会失去朋友。
Such administrative overheads in a business are analogous to the cost of government in a nation.
一家企业的这种行政管理开支类似于一个国家的政府管理所用的开支。