Describes in detail the unified standards formulated in 1953 for the series of high vacuum oil diffusion pumps manufactured in the former USSR.
详细地介绍了前苏联1953年由国家制订的高真空油扩散泵工业产品的统一系列。
"The Promise vacuum" by a group of former "Southern Light" of management, technical backbone of the creation in 2000 and 2000 by the Institute of Vacuum Technology Achievement Award vacuum;
“无极真空由一批原“南光”的管理、技术骨干创建于 2000 年， 2000 年获真空学会真空科技成就奖；
On this basis, the difference between the limited lift by vacuum pumping and the effective depth of vacuum preloading is analyzed and the reason of the latter may greater than the former is analyzed.
在此基础上，比较了真空提水的极限深度和真空预压有效加固深度的不同，分析了真空预压有效加固深度大于真空提水极限深度的原因。
On this basis, the difference between the limited lift by vacuum pumping and the effective depth of vacuum preloading is analyzed and the reason of the latter may greater than the former is analyzed.
在此基础上，比较了真空提水的极限深度和真空预压有效加固深度的不同，分析了真空预压有效加固深度大于真空提水极限深度的原因。
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