7 负脉冲(negative pulse)：脉冲信号跃变后的值比跃变前的值低，称为负脉冲。 8 数制(a system of computation)：数的进位和计算方式。
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negative-pulse 负脉冲
negative pulse corona 负脉冲电晕
negative pulse voltage 脉冲负偏压
negative pulse stuffing 负脉冲填充
positive and negative pulse 正负脉冲
positive negative pulse stuffing 正负脉冲
The rate of penetration of the negative pulse jet assisted drilling can increase from 0.7 to 3.0 in in-house simulation drilling compared to conventional drilling.
与常规钻井相比，室内模拟钻井试验条件下负压脉冲射流辅助钻井可以使钻速提高0.7-3.0倍。
The influence of negative pulse voltage applied directly to stainless steel samples on plasma characteristics has been found to be negligible, except sample sputtering.
直接施加于试样的脉冲负偏压对等离子体特性没有明显影响，但存在着一定的溅射作用。
On the bipolar-pulse mode HIPIB apparatus, a planar diode model of self-magnetic field MID is proposed for analysis of the diode behaviour during the negative pulse stage.
通过建立平面离子二极管模型，分析了负脉冲阶段二极管中初始等离子体的形成。
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