用于测定细绒棉和长绒棉的成熟系数。 Used for testing maturity coefficient of medium cotton and longstape cotton. 适用标准Standards:GB/T6099.2 偏振度Polarizing angle < 8 测试精度Accuracy 成熟系数Maturity coefficient:±0.03,LED 灯泡规格Bulb specification BA15D 15W/6V 硒光电源Selenium light power supply 56-AΦ45 外形尺寸Dimensions L300×W400×H100mm