boring machine

基本解释

The nitriding is an important heat treatment process to boring axis in CNC floor-type milling/boring machine.
氮化处理是数控落地铣镗床上重要部件镗轴的常用最终热处理工艺。
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，纽约，被称作“沙狗”的隧道挖掘工人从第二大街地铁建筑工程的北向的隧道的隧道掘进机中走出。
The kerf is the outside boundary of the tunnel wall that a boring machine gouges out as it bores through the ground or rock.
切口在隧道壁边界的外面，隧道壁是由钻机在钻透土地或岩石时挖出的。

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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