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烧钻
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|<center>'''烧钻'''<br><img
src="https://so1tse2-mm.360trescn.combing.net/th/id/t01a9680ae030e7b0f3OIP-C.jpgW1kitdY9LWbK4nvm4rMxVAHaHa?pid=ImgDet&rs=1 " width="280"></center><small> 圖片來自优酷</small>
|}
'''金刚石钻进中常见的孔内事故'''