coefficient of two-step unline optics 二阶非线性光学系数
One step self-correlation coefficient has little influence on predicting accuracy.
一步相关系数对预测精度的影响不大。
The last step the flow coefficient of the checked apparatus is determined, and we print the certification of proof.
最后确定被校表的流量系数，并打印证书。
Resistance temperature coefficient (RTC) of step function PTC thermistor depends on it's measurement methods, therefor the obtained results are not unique and comparable.
目前突变型PTC元件电阻温度系数的测量方法各种各样，因此测试结果缺乏唯一性和可比性。
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