According to the work of a low pressure vacuum valves, ultra high vacuum valves and vacuum valves.

根据工作压力有低真空阀门、高真空阀门和超高真空阀门。

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It works under low temperature, strong magnetic field, ultra high vacuum and high electric potential, which leads to high requirements for its design.

组件工作在低温、强磁场、高电压、超高真空的环境中，这对工程设计提出了很高的要求。

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In this paper, mainly introduce ultra high vacuum gauge intercomparison system.

本文主要介绍了全金属超高真空规管比对系统。

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The transistor itself is composed of a single phosphorous-31 isotope, which has been precisely placed on a base of silicon using a Scanning Tunneling Microscope in an ultra-high vacuum chamber.

FORBES: Scientists Create A One-Atom Transistor