The hand guard helps with screw stabilization, houses a stud finder and a laser guide to project plum lines and assist with leveling.

护手可以帮助稳定螺丝，内置一个寻柱设备和一个激光辅助系统。 该激光辅助系统可以在墙上投射铅垂线，辅助水平垂直定位。

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Two other key issues were reducing the weapon's weight and increasing the heat resistance of the hand guard, which would start to melt after firing too many rounds.

另外两个关键问题是减轻枪械的重量和提高扶手的耐热能力，试射几轮以后扶手便开始融化。

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These weapons also had a heavy brass guard which encased almost the whole hand.

这些武器还有一层厚厚的黄铜防护，几乎把整个手柄包了起来。

《柯林斯英汉双解大词典》

The 34-year-old Ellis was clearly out of his depth as Maccarinelli smashed a right hand through his guard and finished the contest with another left to the body.

BBC: Maccarinelli stops Ellis in two

If Chicago does win the bid there will be plenty of police and National Guard on hand to protect the international visitors.

CNN: Commentary: Obama's silence on Chicago crime

While on foot, Russell noticed a man down the street with what looked like a pipe in his hand running toward two National Guard members.

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