... rock bit testing rig 牙轮钻头试验钻机 rock borer 钻岩机 rock breaker 碎石器 ...
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... vane borer 涡轮式钻土机... rock borer 岩石钻,钻岩机... wood borer 木钻床 ...
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rock-core borer 岩心钻机
rock-core e borer 岩心钻机
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N any of various sea creatures that bore into rock, such as some sea urchins, sponges, annelid worms, barnacles, isopods, and molluscs 钻入岩石的海生动物; 诸如海胆、海绵、环节蠕虫等
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