Pneumostatic
气动的, 静气的
🗣️ 情景例句
It works!
有效！
Could you tell me the cost of production per unit?
请你告诉我每件成品的生产成本好吗？
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。