An analogue meter moves a needle along a scale.
指针式万用表,以在一个范围内,摆动一根指针指标测量数值而名.
Based on an empirical formula, soil moisture calculating as well as its temperature correction is worked out by means of an analogue computing circuit so that the percentage of water in soil can be directly read on the meter.
土壤水分的计量及其温差的补偿是在经验公式的基础上,通过模拟计算电路的运算,便可以在仪表上直接读出土壤含水量的百分值;
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