直流系数表号 DC table
直流参数测试系统 DC parametric test system
直接流数码 DSD
交直流两用数字电压表 AC-DC digital voltage meter
直流波形因数 DC form factor
直流三线数字式测力仪 DC trilinear digital dynamometer
数控直流恒流源 Numerical Controlled Constant-Current Source
直流数字电压表 DVM DC Digital Voltmeter ; DC DIGITAL VOLTMETER
直流计数器 direct current integrating meter ; battery operated counter
全数字直流调速 complete numerical DC speeder ; SPDM ; full digital dc speed adjusting
文章中首先分析了逆变器的拓扑结构以及在直流端电压比不同的情况下的输出电平数。
First, the topology of the inverter and different output voltage level numbers in the situation of different voltage value ratio of two DC power supplies are analyzed.
对于直流互击式喷注器，鲁泊数和孔径比是影响喷注器性能的两个关键参数，而且两者之间有一定关联。
The Rupe number and the ratio of injection orifice diameter are two key parameters affecting unlike impinging injector performance, and they are closely interrelated.
对于O_2／N_2混合气体，模拟了不同配比条件下直流放电过程，得出了发生碰撞的粒子数随E／N、电子能量的变化；
The process of DC discharge in O2/N2 mixtures with the different N2 concentration has been simulated. The dependences of number of collisions with the E/N and the energy of electron are given.
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