问题
单项选择题
有关滤线栅栅比的正确解释是（）。
A．栅比为铅条高度与其宽度之比
B．栅比为铝条宽度与其高度之比
C．栅比为铅条高度与其间隔之比
D．栅比为单位距离内铝条的数目
E．栅比表示单位体积中铅的重量
答案
参考答案：C
解析：
滤线栅的栅比(R)定义为栅条高度(h)与栅条间隙(D)的比值。
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有关滤线栅栅比的正确解释是（）。
A．栅比为铅条高度与其宽度之比
B．栅比为铝条宽度与其高度之比
C．栅比为铅条高度与其间隔之比
D．栅比为单位距离内铝条的数目
E．栅比表示单位体积中铅的重量
参考答案：C
解析：
滤线栅的栅比(R)定义为栅条高度(h)与栅条间隙(D)的比值。
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