vacuum factor的意思|示意

SCD developed the first vacuum etching machine in China, with vacuum flood bar in the etching chamber; no pool effect; etching factor is up to 4.0.

SCD开发了中国国内第一台真空蚀刻机，蚀刻室内加装真空水刀，从根本上解决了水池效应，蚀刻因子提高到4。0以上。

Reliability of the sealed vacuum tube is very important, and the main factor that affects reliability is its vacuum degree.

密封真空管的可靠性尤其重要，影响其可靠性的主要因素是真空度。

Vacuum system is important to the turbines economy operation, and vacuum tightness is the main factor that affects vacuum of steam turbine.

汽轮机真空是汽轮机经济运行的关键，真空严密性是影响汽轮机真空的主要因素。