那个数值与今天雷达测定的149,597,870公里相当接近，就当时来说准确度很合理，雷达在精度上已经取代了凌日和其他所有方法。
Reasonably accurate for the time, that is quite close to today's value of 149,597,870 km, determined by radar, which has now superseded transits and all other methods in accuracy.
建议在现行SY 5093—92标准中增加酸化滴定法附则，用来测定水媒法生产的CMC产品的取代度。
It is suggested that acidizing treatment and titration should be appended to SY 5093 92 to determine the substitution degree of CMC produced with water-medium method.
本文改进了用于测定羧甲基壳聚糖羧甲基取代度的灰分分析法。
In the paper, an ashing method was improved to characterize the degree of carboxymethyl substitution of carboxymethyl chitosan.
测定了产物的取代度、特性黏度、 相对分子质量、 吸湿保湿性，并用IR、NMR进行结构表征。
The DS, intrinsic viscosity and weight-average molecular weight of the products were calculated. The products were characterized with IR and NMR spectroscopy.
测定了产物的取代度、特性黏度、 相对分子质量、 吸湿保湿性，并用IR、NMR进行结构表征。
The DS, intrinsic viscosity and weight-average molecular weight of the products were calculated. The products were characterized with IR and NMR spectroscopy.
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