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单词 sidetracking
释义 sidetracking
[`sīd´trak·iŋ]
ENGINEERING
The deliberate act or process of deflecting and drilling a borehole away from a normal, straight course.
PETROLEUM ENGINEERING
Drilling procedure to bypass a broken drill or casing permanently lodged in the hole being drilled for an oil well, usually by using a whipstock.
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