本文对可见一紫外分光光度计在使用过程中出现的吸光度读数不稳的故障原因进行了分析，结合实例提出了排除这一故障的方法。
This paper analysed the reason for the breakdown of unstable absorbance reading of ultra - vis spectrophotometer in operation and suggested a method to eliminate it with illustration of examples.
结果表明，品质性状的遗传主要由 基因加性效应引起，其中蔗汁锤度、旋光读数、转光度、蔗汁蔗糖分主要由父本 基因加性效应引起。
The results showed that the heredity of quality characters was induced mainly by additive gene effects. The changes in brix, PR, Pol and SC were affected by male parents.
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