实现这些涉及到切割部分墙壁，挖空角落和更换屋顶。

Achieving this involved cutting away sections of the walls, hollowing out corners and replacing the roof.

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钻机的切割部分；通常是尖头的有螺旋状图案并且可以更换用在柱柄或上。

The cutting part of a drill usually pointed and threaded and is replaceable in a brace or bitstock or.

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设计了圆盘刀人力割禾器，其推进只是起到行走和预切割部分茎秆的作用，切割主要由动刀旋转来完成。

Disc sickle labor power cutter is designed which advanced attachment makes function as walking and precutting part straw, cutting finished by cutter section rotation.

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When it cuts it leaves sticky ends or un-base paired single stranded regions on each end of the part its cut and that's just a property of many restriction enzymes; not all, some cut blunt,just right down the middle.

它切割后会留下两个粘性末端,或者未配对的单链部分,这是许多限制性内切酶的特性,但不是全部,有些限制性内切酶是从中间钝切的

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