As improved measurement tools reveal smaller wellbore features, there is a growing body of work aimed at measuring the physical effect of the flaws.
由于改进的测量工具能够显示出更加细微的井身特征,因此为测量出井身缺陷的物理影响,我们还需要做大量的工作。
Hand-held portable power tools - Measurement of vibrations at the handle - Part 5 : pavement breakers and hammers for construction work.
便携式手提电动工具。手柄振动的测量。第5部分:建筑工程用柏油路破碎机和錾平锤。
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