"I told him many years ago, it's very hostile," Kittinger said. "you're in a vacuum, and your whole life is dependent on the pressure suit working properly."
“我告诉他许多年以前，这么做非常危险，”基廷格说，“你处于真空的环境中，你的全部生命都仰仗压力服的表现。”
The structure, working principle and application of centrifugal - flow thin-film vacuum evaporator were introduced.
本文介绍了离心薄膜真空浓缩设备的结构工作原理及它的应用。
Mount central vacuums on a wall away from the grooming area so only the overhead vacuum hose is in the area where you'll be working.
把中央吸尘器装在一堵远离梳洗区的墙上，这样的话，架空吸尘器的排气管就可以正好放在你将要工作的地方。
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