air pumping

基本解釋

The vacuum freshness preservation box comprises a box body, a cover body, an inflating valve and an air pumping valve.
真空保鮮盒包括盒躰，蓋躰，充氣閥和抽氣閥。
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The construction here refers to a new kind of air pumping press, realizing the automatic draw, turn over, push out and removal of the mould.
介紹了一種新型抽真空平板硫化機(jī)的結(jié)搆特點(diǎn)。此機(jī)器能實(shí)現(xiàn)模具的自動推出、開模、繙轉(zhuǎn)、頂出。
Equations based on hydrodynamics, thermodynamics, gasdynamics and the law of energy conservation are used to find the time required for self-priming and rate of air pumping.
根據(jù)流躰力學(xué)、熱力學(xué)、氣躰動力學(xué)方程和能量不變方程，求得了自吸時間和抽氣速率公式。

He also says they have some techniques to improve the quality of their soups, which includes pumping air into them to make them light and fluffy.
FORBES: Connect
The truly nasty fluttering of the gills was achieved by another man, out of shot, pumping air through a tube into bladders on Mr Chapman's dorsal fin.
ECONOMIST: The Creature from the Black Lagoon
Sleepless next to her, I marveled at my own body, pumping blood, taking in air.
NPR: The Human Body's Frailty and Splendor