The camera focuses on a gun recoiling, then pans out to search for the impact point. A white line of smoke arcs above the city and ploughs into a group of houses.

迫击炮弹爆炸的声响回荡在萨拉热窝上方的山上，摄影机镜头聚焦在一门发射时后冲的炮上，然后镜头伸向炮弹击中的地方，一条弧形白线越过城市上空掉落进一片房屋之中。

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Gravel multi-function impact test enginery main standard components are: shot gun components, collision chamber and specimens grippers.

砂砾多功能冲击试验机主要的标准组件有：射枪组件、碰撞室和试件夹持器。

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Resistance to low and high temperature resistance, impact resistance, reliability and service life beyond the metal body of grease gun.

耐高低温，耐冲击，可靠性和寿命都超出金属体的黄油枪。

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Furthermore, University of Chicago professor (and co-author of the bestseller Freakonomics) Steve Levitt has noted that most proposed gun controls have minimal impact on gun crime.

FORBES: Why 3D-Printed Untraceable Guns Could Be Good For America

"We know there is no single answer and, quite frankly, we don't even know whether some of the things people think impact on this (gun violence) actually impact on it or not, " Biden said just before the meeting, stressing that video game industry officials are among "a whole lot of people" participating in the discussion.

CNN: STORY HIGHLIGHTS

The President believes that those measures that would have an impact on reducing gun violence across the country should be passed.

WHITEHOUSE: Press Briefing by Deputy Press Secretary Josh Earnest