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...
Its distribution pattern was aggregative and the stand structure had distinct levels.分布格局呈群聚型,林分结构层次分明.In the course of its development, an integrative aggregative tension appeared.在教育政治学发展的过程中, 出现了两种张力:整合的张力和多元的张力.Sino ...
F 1 females could be backcrossed to the male homozygous recessive parent.也可用雌性F1与隐性纯合雄性亲本回交.Homozygous races do not segregate on selfing.自体受精不能分离纯合的生理小种.Objective : To study the pathogenesis of a homozygous patient with ...
The prosecutor in principle does not make specific opinions regarding penalty in the prosecuting activities.故在实践中检察官原则上不提出具体的量刑建议.Every point made by the prosecuting attorney was telling.检查官提出的每一点都是有力的....the prosecuting...
It is gross incivility to refuse answer when spoken to.当人家找你说话时拒绝答应是极其无礼的事.Was not this some excuse for incivility , if I was uncivil?即使我刚才真是无礼,难道这不是我无礼的某种起因 吗 ?...