... sidewalk 人行道 sidewall contact device 推靠器 sidewall core cutter 切割式井壁取心器 ...
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Poly-sidewall contact semiconductor device method 发明名称
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Sidewall contact device was classified by function, the configuration and features of each kind device were analyzed.
按照功能对常见的测井仪推靠器进行了分类，分析了每一类推靠器的结构和特点。
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