|
A deformational particle with oil-soluable property is used as a bridge plug to build a shielding layer in the oil-gas reservior channel, to prevent the pollution caused by drilling mud entering the reservior due to the pressure difference, and so to prot
|
|
|
摘要用一种具有油溶性质的可变形粒子做桥塞物，在油气储层通道中建立桥堵屏蔽层，防止由于压差造成钻井泥浆进入储层而形成污染，从而起到保护油气储层的作用。 |
|
A deformity of the back in human beings caused by an abnormal convex curvature of the upper spine.
|
|
|
驼背人类背部的变形，由脊柱上部不正常的弯曲凸起造成 |
|
A degraded and squalid class or state of human existence.
|
|
|
下等阶层人类生活中一种堕落的，邋遢的阶层或状态 |
|
A degraded community tends to develop to be more complex and sounder in structure.
|
|
|
退化群落通过自然恢复总是向着结构更复杂、更完善的方向发展。 |
|
A degree is prerequisite for employment at this level.
|
|
|
必须具备大专院校的学位才能从事这一级的工作. |
|
A degree of freedom is any quantity that can vary, such as a coordinate specifying a particle's location or one component of its velocity.
|
|
|
一个自由度是可以改变大小的任何量，例如标示某一粒子位置的座标，或粒子速度的某一分量。 |
|
A delegate sent to observe and report on the proceedings of an assembly or a meeting but not vote or otherwise participate.
|
|
|
观察团一个代表团，派去观察并报告集会或会议进展，但不投票或参与其它活动 |
|
A delegation headed by Chairman Zhang Xueren and Deputy General Manager Wang Xianli arrived in Nan Yang with student grants donated by the whole staff of ZCE, and expressed sincere solicitude for the staff of Three Represents' Theoryrural work group in th
|
|
|
1月27日,副总经理王献立一行赴山西太原参加郑商所与山西三立期货经纪公司合办的郑商所培训基地揭牌仪式及第一期授课,并对当地会员进行走访. |
|
A delegation headed by Director Liu Yueping joined the summer camp Approach to Britainjointly held by our school and St. Joan of Arc.
|
|
|
刘跃平主任率巴蜀师生代表团赴英国与圣女贞德友谊校师生共同开展走进英国夏令营。 |
|
A delegation headed by Headmaster Liao Wensheng visited St. Petersburg for cultural exchange.
|
|
|
廖文胜校长率巴蜀师生代表团赴俄罗斯圣彼德堡作艺术交流访问。 |
|
A delegation headed by the Vice Chancellor of our university, Professor Wang Qiao paid a visit to the University of Central Lancashire.
|
|
|
16副校长王乔及江建强、吴志军、刘峰出访英国中兰开夏大学，进行学术访问和交流。 |
