Sliding-vane vacuum pump
[化] 滑板式真空泵
🧩 词语组成解析
a. 滑行的, 变化的\\n[机] 滑动
n. 风向标, 风信旗, 变化不定的事物\\n[机] 轮叶, 叶
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
Can you tell me what time you close?
您能告诉我关门的时间吗？
Nothing must be done hastily but killing of fleas.
除非消灭跳蚤，做事不必急躁。
Many people have been out of work recently.
最近有许多人失业。