1)  DC bias
直流负偏压
1.
A self-consistent fluid model was developed describing the spatiotemporal characteristics of parameters in the radio-frequency plasma sheath under DC bias without molecule collision,considering the effect of DC negative bias of electrode on ion motion.
模型中考虑了极板直流负偏压对离子运动的影响,模拟了在不同偏压条件下射频等离子体鞘层内各参量的时空演化特性。
2)  DC/DC
直流-直流
3)  DC/DC
直流直流
4)  DC/DC
直流/直流
5)  DC
直流
1.
Discussion on advantages of MF inverter DC resistance welding;
中频逆变直流电阻焊优势探讨
2.
The design and application of the KYZ-250/550 type dc impulse speeder of stringing locomotive;
KYZ—250/550型直流架线电机车脉冲调速器的设计与应用
3.
DC energy conservation control transform of hoist AC contactor;
提升机交流接触器直流节能控制改造
6)  Direct current(DC)
直流
1.
Aiming at the direct current(DC) power source system of the electric power system,introduces systematically the diagnosis technology of the direct current ground fault,analyzes several diagnosing methods of the direct current ground faults.
针对电力系统的直流电源系统直流接地故障的诊断技术进行介绍,对几种直流接地故障诊断方法进行了较为详细的分析。
参考词条
补充资料：负负
1.犹言惭愧﹑惭愧;对不起﹑对不起。
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