Two kind of separated perforating and pulse fracturing composite charges are studied.论述了低渗油气层的地质特征;研究了两种分离式射孔脉冲压裂复合弹.Macroscopic deviations from isotropy occur due to bedding, schistosity and also sometimes fracturing.与各...
Macroscopic deviations from isotropy occur due to bedding, schistosity and also sometimes fracturing.与各向同性相差很大的情况往往产生于层理, 片理,某些时候则由于断裂所造成.Therefore, CNOOC's proposed drilling fracturing with reasonable sanding recov...
Fix plastics base and metal base on the metope with ST 4.2 screws.用ST4.2螺丝将塑料底座和金属底座一块固定在墙面上.Metope cost component: Have two shares.2墙面造价组成部分: 有两部分....
成功无法保证，并非唾手可得。成功必须靠自己去争取。Success is not guaranteed. It is not handed to you. Success is earned.他14岁起就知道自己日后干什么了。He knew what he wanted to do from the age of 14.她重振旗鼓去开创自己的事业了。She dusted herself down and left to build her...
Arthur Murray taught the foxtrot, the tango and the waltz.阿瑟·默里教狐步舞、探戈和华尔兹。"Waltz with me," he said, taking her hand.“来和我跳支华尔兹吧，”他边说边牵起她的手。She played a Chopin waltz as an encore.她应听众的要求又加演了一首肖邦的圆舞曲。...