Wire feeder of four drive roll system is controlled bu welding power source with the advantages of stable feed speed, good start and brake characteristics, easy to move.

采用四轮驱动送丝机，受焊接电源控制，送丝稳定，启动，制动良好，维护方便。

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The paper introduces some methods for diameter compute, velocity measurement, tension control, the same shaft series twice motors control and load balance control of twin drive roll.

介绍了卷径计算、线速度测量、张力控制、同轴串联双电机控制、上下辊负荷平衡控制方法。

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Handling of these issues is a premise for the creation of SOX and the drive to roll specific practices related to codes of conduct into the reporting channel and oversight process.

这些问题的处理对于创建SOX以及推动将有关行为准则的具体行为融入到报告和监管过程来说是一个前提。

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Just as simple as it sounds, you just drive up, roll up your sleeve, and get vaccinated right in the comfort of your vehicle.

FORBES: Drive-through Flu Shots Gaining Popularity in U.S.

The annual drive to update the electoral roll is getting under way this month with letters being sent out to households, seeking confirmation of existing electors and information on new ones.

BBC: NEWS | UK | UK Politics | Election counts could be delayed

At which point the subsidy junkies shout that we should just subsidise the roll out as this creates a market which will drive innovation.

FORBES: Solving Climate Change: It's the Technology, Stupid