In order to improve the signal noise ratio and the precision of the analysis, a "two-level sifting" is processed in recording and analyzing VLP by HOLTER.
为了提高晚电位分析结果的精确度，提高信号噪声比，在HOLTER记录和分析时，采用了“二级筛选”的设计方法。
The railway signal auto-control system is a level of power supply load, which requires two lines of high quality power supply.
铁路信号自控系统是一级供电负荷，要求有两路高质量的供电电源。
The results show that the Doppler background due to the near resonance of the intermediate level is eliminated and the signal of two-photon transition can be distinguished from saturation absorption.
计算结果表明它能有效地克服中间能级近共振所产生的多普勒背景，并有效地区分单光子饱和吸收讯号和双光子跃迁讯号。
Constant flow rate manually adjustable, proportional flow rate according to a digital input signal (from water meter), Power-ON led indicator and level control input. The two different modes are.
比例调节，可根据数字信号（比如水表发出的脉冲信号）来调节流量的比例，带有电源指示和液位探头接口，可直接连接液位探头控制计量泵启动或停止。
Constant flow rate manually adjustable, proportional flow rate according to a digital input signal (from water meter), Power-ON led indicator and level control input. The two different modes are.
比例调节，可根据数字信号（比如水表发出的脉冲信号）来调节流量的比例，带有电源指示和液位探头接口，可直接连接液位探头控制计量泵启动或停止。
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