The on-site tests of 5 wells showed that the stiffness of lower drill pipe assembly was increased to control deviation in the straight hole.

经现场5口井试验表明，不弯曲钻铤能够起到增大下部钻具组合刚度，控制直井段井斜的作用；

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In this paper, the concept of preview course lateral deviation was given and a corresponding driver control model was set up.

文章给出了横向预瞄偏差的概念，提出了一种基于横向预瞄偏差的驾驶员前视轨迹控制模型。

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This paper introduces successful construction method and control measure currently used for holedrill, borehole deviation, protection tube, and embedment and installation of bimetal mark.

介绍了目前比较成功的倒垂孔钻孔、钻孔偏斜、保护管安装、双金属标的埋设及安装等施工方法和控制措施。

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Under a private system, the link between price deviation and correction is immediate and strong because supply is under the direct control of the currency issuers, who have the means through loan and trading operations to tightly clamp down on (or expand) the supply.

FORBES: Private Currency Competition Is The Monetary Answer