According to his idea, outlined in the current issue of the journal Astrophysics and Space Science, matter has a positive gravitational charge and antimatter a negative one.
在近期的《天体物理与空间科学》杂志上，他对物质带有一个正引力荷，而反物质带有一个负引力荷的假设进行了概述。
The conservation of charge corresponds to time symmetry, while conservation of current corresponds to space symmetry.
电荷守恒对应于时间对称性，而电流守恒则对应于空间的对称性。
This paper introduces the concept of extended total space, and then we extend conservation of charge and conservation of current to general case.
在文中引入了扩展全空间概念，由此得到电荷守恒和电流守恒的一般形式。
The displacement current mechanism is operative only for capacitors under reverse bias or very weak forward bias conditions which maintain a space-charge layer .
位移电流的机理只对反向偏压或要维持空间电荷层所需要的非常弱的正向偏压条件下的电容器才有用。
Taking the effects of space charge and carrier diffusion as well as injected current pulse width into account, an analytic expression of a transit angle of 8 mm Si DDR IMPATT diode is derived.
在考虑载流子的空间电荷效应、扩散效应和注入电流脉宽情况下，推导了双漂移崩越二极管的渡越角表达式。
Simulation and measurement result indicate that magnetic field influence the beam current of MIG, and the beam current of the MIG depends on the cathode temperature and space charge effect.
模拟和测量结果显示磁场对MIG的束流有影响，MIG的束流也与阴极温度和空间电荷效应有关系。
Theoretical analyses are carried out to study the space-charge-limiting current in coaxial configuration and the terms of virtual cathode formation.
对其相关束流特性进行了理论分析，得到了同轴空间径向传输空间电荷限制电流，以及虚阴极产生的条件和电子束运动的基本规律。
The 2-d effect and the initial energy influence of emitting electrons on space-charge-limiting current in diode are studied by PIC simulation and theoretical analysis.
采用理论分析和粒子模拟的方法研究了阴极发射电子初始能量和二维效应对二极管空间电荷限制流的修正。
The 2-d effect and the initial energy influence of emitting electrons on space-charge-limiting current in diode are studied by PIC simulation and theoretical analysis.
采用理论分析和粒子模拟的方法研究了阴极发射电子初始能量和二维效应对二极管空间电荷限制流的修正。
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