串联单相功率因数校正电路整流单元对
cascaded single phase power factor correction rectifier pair
多元概率母函数
r-dimension branching chains
多元转移概率母函数
rhansition probability function
二元频率函数
bivariate frequency function
港元汇率指数
effective exchange rate index of Hong Kong dollar
贸易加权港元汇率指数
trade-weighted effective exchange rate index of Hong Kong dollar
数元误率顺序计数器
bit error rate sequencing counter
超音波法液位元元元元元元测定
ultra-sonic method of liquid meaduremert
(S-P)BOD-DO水质模型参数率定
determination of parameters of(S-P) BOD-DO water quality model
16-数元处理器状态字
processor status word(PSW)， 16-bit
4.数元双极微处理机截片
bipolar microprocessor slice， 4-bit
4-bit bipolar microprocessor slice
bipolar microprocessor slice
4-Bit