The control system sends out impulse dictates to drive three-coordinate manipulator with injection-gun to finish the accurate position orientation.

控制系统发出脉冲指令驱动三坐标机械手，带动注射枪完成定位加注。

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Background checks are widely considered the heart of the gun control drive.

NPR: Both Sides Hunt Support In Background Check Fight

Expanded background checks are the core of the Democratic gun control drive.

NPR: Senate Ready To Launch Gun Control Debate

All three helped drive new gun control measures in New York, Colorado and in Connecticut, where Gov. Dannel P.

WSJ: Few states find narrow route to gun control laws