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1)  batch cementing for surface casing
集中钻固表层
2)  surface cementing
表层固井
1.
The dynamic response of surface cementing head during offshore drilling is analyzed by the structural dynamics method for the cases with simple support and fixed support.
应用结构动力学分析方法,考虑简支和固支两种情况,对海上钻井表层固井环板装置的动力响应进行了分析。
3)  fixation together
集中固定
4)  enrichment in surface soil
表层富集
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5)  concentrated gas meter box
集中表箱
1.
Through a careful hydraulic calculation,this article confirmed the diameter of the polyethylene-aluminum-polyethylene composite pipes which are fixed after the natural gas meter set in a concentrated gas meter box.
本文通过详细的水力计算,确定了天然气集中表箱表后采用的铝塑复合管的管径。
6)  centralized meter reading
集中抄表
1.
Handshaking serial communication protocol of centralized meter reading system;
集中抄表系统中的握手联络式串行通信协议
2.
The automatic remote centralized meter reading system based on PSTN was introduced, and its constitution was given.
介绍了基于PSTN通信的自动远程集中抄表系统及其结构。
3.
Main problems faced by low voltage power-line carrier technology when it applied in remote centralized meter reading system was introduced.
介绍了低压载波技术在远程集中抄表应用中面临的主要问题,通过对双滦供电公司实施集中抄表中出现的一些问题的剖析,提出了值得大面积推广的建议。
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补充资料：冻土钻(见取土钻)


冻土钻(见取土钻)


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