影响双向卫星时间频率比对(TWSTFT)准确度的一个重要因素是卫星的运动。
One of the important factors affecting the accuracy of two-way satellite time and frequency transfer (TWSTFT) is the satellite motion.
研究了脉冲电镀在微氰镀金，无氰镀金体系中脉冲频率、脉冲占空比对镀金层耐磨性的影响。
The effect of pulse frequency and pulse duration ratio on the abrasion resistance of gold coatings is investigated with pulse plating in cyanide free and trace cyanide baths.
频率、脉宽比对水颗粒聚结效果影响较小，但对电能消耗产生重要影响。
Frequency and pulse width ratio play an important role for power consumption rather than coalescing process.
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