The effect of plasma thickness, wave frequency, electron number density distribution on it is almost independent of the wave polarizing direction.
等离子体厚度、入射波频率、电子数密度分布对功率反射系数的影响几乎与波的极化方向无关。
Curve A might represent the frequency distribution of the number of days' supply on hand in the perishable grocery business.
曲线a 可用以刻画食品商人手中易霉货物储备天数的频率分布。
Shanxi is the mainly coal mine province of our country, large number of coal mine enterprises, large distribution, the higher frequency of security accidents.
山西是全国的煤炭大省，煤矿企业数目多，分布范围大，安全事故的发生频率较高。
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