The main reason is that cavitation erosion occurred in pervasion pipe of lubricator.经检查发现,主要原因是注油器扩散管汽蚀,以致注油器工作不正常,润滑油压偏低.Pay close attention to the conditions of lubricator and down - hole SSV, etc. during operation.作业期...
In other words, experts want shortcuts to everything.换句话说, 专家需要所有的快捷方式.Offer shortcuts from the Help menu.在帮助菜单中提供快捷方式.Some shortcuts may be achieved to the expense of check , built into the standard distribution procedu...
Cocktails at the Plaza was a nightly ritual of their sophisticated world.到广场饭店喝鸡尾酒是他们这个高雅时髦的圈子中的人每晚必做的事情。For months at a time, air raids were a nightly occurrence.一度有几个月，每天晚上都会发生空袭。A new and younger crowd filled the bar ...
Three novel Schiff bases were synthesized using the reaction of 4 - aminoatipyrine with 3 - formylchromone, cinnamaldehyde and anisaldehyde.用 4- 氨基安替比林与 3- 甲酰基色酮 、 肉桂醛、茴香醛反应分别合成了3种新的席夫碱化合物....