variable measurement造句

this paper gave a recipe distance measurement method and recipe class distance measurement method based on hybrid variables measurement
建立了配方的相似性测度及配方类间混合距离测度方法。
these variables, which are key indictors of process performance, are normally determined by off-line sample analyses in the laboratory or using an on-line analyzer . product quality values calculated on-line by using indirect but readily variable measurements ( known as soft measurements ) have been considered as an efficient method to solve this problem
这是因为：(1)许多重要变量难于实时测量；(2)对每个生产过程变量设置测量仪表是非常不经济的；(3)在线质量分析仪投资昂贵、难于维护、实时性差。
It's difficult to find variable measurement in a sentence. 用variable measurement造句挺难的