vacuum down

The phenomena of condenser vacuum slowly running down occurred many times in Yinchuan Congeneration Power Plant.

介绍了银川热电厂二期工程投运一年以后,多次出现凝汽器真空缓慢下降的现象.

Pull air pump handle and pump it repeatedly until the vacuum indicator button goes completely down.

每次拉动手柄,真空显示钮(深蓝色)自动降低,直至完全平降即可.

At present, the appraising index is the rate of vacuum down obtained from vacuum tightness test.

目前，评价汽轮机真空系统严密性的指标是真空系统严密性试验得到的真空下降速度。

Improvement and Analysis of Burnt down Phenomenon of a Locking Solenoid Electromagnet for Type VD4 Vacuum Circuit Breaker

VD4型真空断路器合闸闭锁电磁铁烧毁现象分析及改进

Vacuum cooling was used instead of conventional air blast cooling to low down the temperature of fresh meat on the producing line of cooled meat, then the meat was stored at ( 1 ± 1)℃.

用真空冷却代替现有冷却肉生产过程中采用的风冷，将肉贮藏在（1±1）℃的冷柜内。

I went down on one knee to plug in the vacuum cleaner.

我单腿跪下插上吸尘器插头.