The screen mesh has little impact on the system frequency.
丝网目数对系统频率的影响很小。
The frequency of neonatal screen was 27.60%.
惠州市的新生儿总筛查率是27.60%。
Purpose: General amplifier and video frequency output in small screen TV.
用途：用于普通放大及小屏幕电视机视放电路。
Purpose: General amplifier and video frequency output in small screen TV.
用途：用于普通放大及小屏幕电视机视放电路。
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