bellows pump造句
造句与例句
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- Condensed alcohol was collected by a series of bellows pumps and returned to a single header tank that fed the heat exchanger.
- Clerk notes that " The only parts that gave trouble were the bellows pumps controlling the gas supply to cylinder and igniting ports; these were made of rubber, and deteriorating after some use gave trouble by leaking and occasional bursting.
- It's difficult to see bellows pump in a sentence. 用bellows pump造句挺难的
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