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...
He accused him of knowingly spreading falsehoods in an effort to blacken my character...他指控他蓄意散布虚假信息以玷污我的人格。He smiled knowingly.他会意地笑了。Ministers must not knowingly mislead Parliament and the public.大臣们不应该故意地误导议会与公众。He ac...