Random error - the mean of a large number of measurements influenced by random error matches the true value.

随机误差(RANDOM ERROR) -受随机分布误差影响的大量测量结果的平均值与真值的偏差。

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With the same magnitude, random period error casts much larger effect on the conversion efficiency than random duty cycle error, which is similar with the case in bulk crystals.

随机周期长度偏差对准相位匹配波导中差频效率的影响要比随机占空比偏差的影响来得大，这与单块周期极化晶体中的情况类似。

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Like other bacteria, S. aureus mutates at random, and through trial-and-error it will eventually find a way to outsmart any drug.

FORBES: A Better Antibiotic?