端切鉆 的英文怎麼說
中文拼音 [duānqiēzhēn]
端切鉆
英文
e cut dur-
An implement with cutting edges or a pointed end for boring holes in hard materials, usually by a rotating abrasion or repeated blows ; a bit
鉆帶切割刃或尖端的工具,用於在堅硬材料上鉆孔,一般靠旋轉磨損或反復擊打實現鉆孔
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