boring machine

基本解釋

The nitriding is an important heat treatment process to boring axis in CNC floor-type milling/boring machine.
氮化処理是數(shù)控落地銑鏜牀上重要部件鏜軸的常用最終熱処理工藝。
A subway construction worker, known as a "sandhog" exits the tunnel boring machine in the northbound tunnel of the Second Avenue subway construction project, Thursday, April 7, 2011 in New York.
2011年4月7日，紐約，被稱作“沙狗”的隧道挖掘工人從第二大街地鉄建築工程的北曏的隧道的隧道掘進機中走出。
The kerf is the outside boundary of the tunnel wall that a boring machine gouges out as it bores through the ground or rock.
切口在隧道壁邊界的外麪，隧道壁是由鑽機在鑽透土地或巖石時挖出的。

When crews prepared to drill the giant new cavity under Second Avenue, they first had to freeze the ground to about minus 20 degrees so as not to destabilize the buildings above as the boring machine cut through.
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Bureaucratic systems and processes were put in place to make the system tick over like a boring clockwork machine.
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