正偏电流

The Alternating Polarity Method applies a bias voltage of positive polarity, then the current is measured after a specified delay.

变换极性法施加一个正极性的偏置电压，然后在规定的延迟时间后测量电流。

The morphology, component and structure of electrolytically etched surface are characterized and the mechanism of electrolytic etching and graining is also discussed based on the theoretical analysis. The components that can form barrier layer or dissolve the resisting layer on the surface of Al-Mg-Si alloy specimens are investigated through voltamperometric and chronoamperometric analysis in several solutions.

通过对Al-Mg-Si合金在各种溶液中的电流密度—电位曲线及电位—时间曲线的测量与分析，筛选出能够在Al-Mg-Si合金表面形成阻挡层的成分和对阻挡层有刻蚀作用的成分，并进行复配实验对比，优选出偏硼酸钠-硼酸、酒石酸-碳酸钠、磷酸钠-正丁酸和柠檬酸钠-柠檬酸等4种图纹电解刻蚀液体系。

Normal working hours, B2-B1 between the need to add a positive voltage, E-B1 between the PN junction forward biased if the Canadian single-junction transistors that turn, after turn-on, E-B1 between the resistance will soon be reduced, to B2-B1 between the current rapid increase in current increase, so that the resistance between the E-B1 further reduced, so the formation of a strong positive feedback.

正常工作时，B2—B1间需加正电压，E—B1间的 PN结若加正向偏置，单结晶体管即导通，导通后，E—B1间的电阻会很快降低，使B2—B1间的电流迅速增加，电流的增加，又使E—B1间的电阻更进一步的减小，如此形成了强烈的正反馈。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。