前级的 meaning in Chinese
forestage
Examples
- Because of the advantages of high efficiency , small volume and weight , the active - clamped forward circuit are used as the dc / dc converter
鉴于有源箝位正激变压器体积较小、重量较轻，采用它作为前级的电路拓扑。 - Its set standard completely correspond to sy t6143 - 96 standard orifice plate measurement method of natural gas and gb t11062 - 89 calculate method in caloric value , density and relative density of natural gas and other national standard
4反馈或测量信号变送输出ma v pvout ： pvout输出信号给前级的调节器或dcs系统，使系统随时可监测实际阀位或现场测量值。 - The thesis also analyzes the average current type of pfc , and gives a design of the former pfc circuit of 1100w switching - power . the key practical techniques of the design are discussed . the experiments have been completed and satisfied results are obtained
论文还研究了平均电流型pfc电路，并设计了1100w开关电源前级的功率因数校正电路，分析了其中实用关键技术，完成了实验研究，获得了满意的试验结果。 - So can completely satisfy measurement request of various natural gas from all parts of oil and gas field and transmission pipeline in our country . there are switch function of multi - kind signal input , only need to simple setup by instruments menu , namely can realize lightly switching between multi - kind input signal , and has jumproved universality and reliability of instrument
Do为无源开关量信号，操作器在手动控制时输出开关量闭合信号给前级的dcs系统或调节器， dcs系统或调节器收到do状态信号后即停止pid运算，并使操作信号输出跟踪阀位反馈信号。