The system also features a rugged 4 driven roll design for positive wire feeding.

该系统也配有一个坚固耐用的4轮送丝驱动设计，能产生稳定的送丝。

youdao

So make sure you connect the positive wire to a power source that is alive when switch is activated and power off when switch is off.

因此，请确保您连接线，以积极的电源开关是活着的时候被激活并切断电源时，开关是关闭的。

youdao

The corona voice strengths and levels of radio interference produced by positive polarity wire have little changes, and those produced by negative polarity wire increase with temperature.

正极性导线电晕声音和无线电干扰变化都不大；负极性导线电晕声音和无线电干扰都增大。

youdao

Additional tests may include a nuclear stress test to assess for blockages in the coronary arteries, and if positive, a cardiac catheterization, an invasive test which involves threading a thin wire into the heart to assess for blockages in the coronary arteries as well.

FORBES: Coronary CT Scans May Save You (And Your Hospital)