这些衍生物的熔点温度很容易确定，而且对每一种(苯脎)衍生物是特征性的。
The melting temperatures of these derivatives are easily determined and are characteristic for each osazone.
本文综述了改性纤维素的种类和物化性质，以及这些衍生物的显著特点和在食品工业中的应用。
This paper summarizes varieties and physicochemical properties of modified celluloses and discusses their applications in food industry.
这些衍生物在紫外-可见光区有强吸收，并且其稀溶液发射强荧光，发光峰位于600 - 650纳米之间。
The derivatives have strong absorption capability in an ultraviolet-visible light region, the dilute solution thereof emits strong fluorescence, and luminous peaks are between 600nm and 650nm.
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