Well body track curve can be drawn out through surveying the depth in the hole.

通过对井筒不同深度的测量，即可得出井身轨迹曲线。

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The development and application of this device provided a necessary mean for the slim hole track measurement and directional window cutting.

它的开发、应用成功，为小井眼、短半径井的井眼轨迹测量、斜向器定向开窗作业提供了必备的测量手段。

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The formation of the bottom hole rock-disintegrating track of the mono-cone bit with wedge teeth was studied, and simulation software for the track pattern was developed.

在此基础上以楔形齿为对象研究了偏心单牙轮钻头井底破岩轨迹的形成，并编制了井底轨迹图仿真软件以模拟牙齿的凿岩轨迹。

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Meanwhile, triple world champion Sebastian Vettel was satisfied with his day's work, despite being delayed by a pot-hole in the track.

CNN: Raikkonen on a roll at Jerez

Returning to the grass track of his youth, he stepped in a hole and injured his hip, though it has recovered.

WSJ: Menu

Either way it is particularly disappointing when you drill a dry hole such as happened to the partners in the Blueberry Hill side-track well (EXXI was not among them), which found nothing and required a write-down in the quarter, surely a factor in the price drop of the stock.

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