查询词典 underpressure

Clean area was in normal pressure state. semi-contamination and contamination area were in specific underpressure state, about –10pa and –30pa respectively.

通过对送风和排风的严格控制，清洁区为正常大气压区，半污染区为负压区（约-10pa ），污染区为更小的负压区（约-30pa ）。

A comparison is made of advantages and defects among protective measures,including adopting advanced imported regulator ,installing fast isolating valve in front of regulator ,using two-circuit regulator plus fast isolating valve,installing excessive underpressure automatic isolating valve in front of domestic gas meter etc.

分析了中压燃气直接进入用户燃气表的危害，比较了采用先进的进口调压器、在调压器前安装快速切断阀、采用双回路调压器加快速切断阀、在家用燃气表前装设超欠压自动切断阀等预防措施的优缺点，提出了其适用场所。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。