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牙轮凿岩钻头
meaning in Chinese
roller-type rock bit
Related Words
鼻中隔凿
凿尖
胸骨凿
凿密
凿成
炳炳凿凿
锤凿
斜边凿
木凿
平头凿
牙轮岩心钻头
牙轮移轴距
牙轮轴
牙轮轴颈角
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