Vacuum perfect的意思|示意

It's the perfect excuse to unplug the vacuum and abandon the washing up - housework can actually be bad for your health, according to research published earlier this year.

拔掉吸尘器的插头，丢开脏碗碟有了完美的理由——今年早些时候发表的研究称，家务活实际上对健康有害。

It commonly used to valve lever seal request strict situation, if USES in the perfect vacuum in the situation and the nuclear industry.

它常用于对阀杆密封要求严格的场合，如用于高真空的场合和核工业中。

The results of the experiment show that it is a type of perfect mine high-voltage vacuum distribution equipment, which is of high quality in its performance, protection and use.

试验结果表明该装置性能优良、保护齐全、使用方便，是煤矿井下理想的高压真空配电装置。

But low-Earth orbit isn't a perfect vacuum.

但近地球轨道不是一个完美的的真空。

In contrast to the mechanism of conduction and convection , radiation may take place in a perfect vacuum.

与传导和对流的原理不同，辐射可在完全真空中进行。

The so-called no perfect technology, vacuum freeze drying technology of the main disadvantages of high cost.

正所谓没有完美的技术，真空冷冻干燥技术的主要缺点是成本高。