Inside the cabinet are an air compressor and a vacuum pump.

盒子内部是一台空气压缩机和一台真空泵。

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A vacuum pump, housed in a rusty ammo box, captured a fumarole's plume.

一个生锈盒子里装着一台真空泵，用来捕获喷气孔冒出的烟羽。

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A vacuum pump creates negative pressure for correct operation of the filtrate recovery system.

真空泵产生的负压是保证滤液回收系统的正确运行。

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The Henry Milker is a hand-operated vacuum pump.

VOA: special.2010.07.20

Thousands of genes stick to each ball, and the combination is loaded into a "gene gun"--two small stainless-steel chambers and a vacuum pump--that uses compressed helium.

FORBES: Millions Served

Thousands of genes stick to each ball, and the combination is loaded into a "gene gun, " which consists of two small stainless steel chambers and a vacuum pump.

FORBES: Millions Served

Michael used a nifty three-gallon pump and a vacuum.

FORBES: Getting A Job Washing Cars Is Harder Than Getting Into Harvard