The steer-able rotary drilling system can control the well path timely and accurately, but it is too expensive.

旋转导向工具进行连续导向钻井具有随时可控性，轨迹控制质量高，但使用成本很高。

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Completing control method of well path due to the rock characters and the interaction between bit and formation.

根据地层岩石特性及钻头与地层的相互作用关系，完成井眼轨迹控制方法。

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Finally, in order to control the well path by dynamics, great attention should be paid to the interaction between bit and drill string.

为了实现依据钻柱动力学的井眼轨迹控制，应特别重视钻柱振动特性与钻头受力状况的相互影响。

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"I will say that and we will continue this path, whatever measures it might be it will be the least affecting the well being of the people of the two countries."

VOA: standard.2009.11.11

PROFESSOR: Okay, so before we get to some of these course policies, I think I'll tell you a little bit about my path to chemistry as well.

教授：好,在我们讲这门课的相关政策之前,我也先和你们说说我怎么走上化学的道路的。

麻省理工公开课 - 化学原理课程节选

And the first law says, well heat and work are different forms of energy, and we can add them, and the path dependence of these two things is somehow cancelled in the fact that we have this internal energy.

热力学第一定律说，热和功是能量的不同表现形式，我们可以把它们加起来,它们与路径相关的部分相互抵消,我们就有了内能。

麻省理工公开课 - 热力学与动力学课程节选

The Nigerian government is treading a well worn path, with many governments having set up similar government-backed "bad" banks to help clean up their banking systems.

BBC: Nigeria's President Jonathan signs 'bad' bank bill

And worse those steps are very likely to be down a well worn path that will lead you no where productive, now that the world has changed so radically.

FORBES: If You Want To Be Successful, What Got You Here Won't Get You There. (Here's What Has To Change.)

But this is the exception to the rule, and most developers have to go the well trodden path of mainstream game genres if they are to attract publishers and, ultimately, an audience.

FORBES: LA Game Space Helps Video Games Grow Up