【名词&注释】
换热器(heat exchanger)、压力表(pressure gauge)、温度表(thermometer)、热电偶温度计(thermocouple thermometer)、热电阻温度计(thermal resistance thermometer)
[单选题]空分塔中筛孔直径在()mm范围内。
A. A.0.3~1.3 B. B.0.5~1.3 C. C.0.7~1.3 D. D.0.9~1.3