比率产出法比率产出法
method of ratio production
导数比率法
First derivative ratio method
方差比率法
variance mean ratio method
variance ratio test
概率比测试阈值
likelihood ratio test threshold
季节移动平均比率法
Moving seasonal mean ratio method
簆簧片频率比测仪
reed frequency comparator
目测法比色
Conventional visual shade
平均资本比率法
average capital ratio method
热导率比测仪
comparative type thermal conductivity instrument