It can increase the hole inclination Angle range and drill elevation Angle holes, while setting the top drive power head and hole top plate toward the opposite direction.

动力头及孔口板调转方向，可直接钻凿仰孔，大大增加钻孔倾角范围。

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The drive system is refitted from the tong head of Q10Y-M hydro-air tong and uses the hydraulic power supply of the tong.

传动系统用Q10Y-M液气大钳钳头改造而成，并采用大钳的液压动力源。

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An improved cutter head drive hydraulic system of the shield tunneling machine was proposed, which achieved energy saving by optimizing the drive power.

设计了一个盾构掘进机的刀盘驱动液压系统，该系统是开式液压系统，应用电液比例控制技术实现了泵排量实时调节。

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Your Wilson Pro H22 tennis racquet quickly became a drying rack for your underwear once you found out that the college tennis team was filled with power-hitting recruits from Estonia and the Ukraine who could knock a flash drive off the top of your head with a backhand.

WSJ: Rob LaZebnik's Message for the Class of 2013 | Saturday Essay