It is ideal casing centralizer for both deflecting and horizontal well.双弓形弹簧片套管扶正器是斜井、水平井理想的套管扶正工具.The conventional casing centralizer can not meet the requirements of expandable casing.传统的套管扶正器满足不了可膨胀套管的扶正要求.Casing cent...
我为詹姆士感到高兴,他虽然是一位饱受争议的球员,但他仍斗志昂扬。I'm happy for James. He's a much-maligned player but has tremendous spirit.几个人查看了那栋半詹姆士一世时期风格、半乔治王朝风格的大楼。Several people looked over the part-Jacobean, part-Georgian building.詹姆士患...
She had that inbred politeness, it was a part of her.她拥有那种天生的优雅,举手投足都彬彬有礼。The whole population is so inbred that no genetic differences remain...整个族群都是同系繁殖,以至于根本不存在基因差异。Inbred mice of the DBA / 2 strain developed severe ...