基于SERDES的串行通信过程中采用时钟和数据恢复技术（CDR）代替同时传输数据和时钟，从而解决了限制数据传输速率的信号时钟偏移问题。
Serial communications based on SERDES adopt the clock_data recovery(CDR) instead of both data and clock transmitting, which solve the problem of clock skew.
依据矿石失重实验数据可计算反应率的大小及其变化关系，并可分析矿石还原过程速率的限制性环节及矿石的还原性。
From the da ta of weight-loss experiment, the rate of reaction and the variation of this rate with time can be calculated. The controlled step of reducing process can be determined also.
发酵过程中维持低葡萄糖水平可以限制细胞的生长速率，提高质粒稳定性和促进青霉素G酰化酶的合成。
Methods:The influence of ammonium sulfate and glucose on plasmid stability and penicillin G acylase activity were conducted in flask shakes and a 5L fermentor.
发酵过程中维持低葡萄糖水平可以限制细胞的生长速率，提高质粒稳定性和促进青霉素G酰化酶的合成。
Methods:The influence of ammonium sulfate and glucose on plasmid stability and penicillin G acylase activity were conducted in flask shakes and a 5L fermentor.
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