因陋就简地为旋光仪加装恒温水套，避免了温度对实验的影响。
It is explained that I append a thermostatic water-jacket to the polarimeter.
因此，它们在性质上的唯一区别应该可通过观测两种香芹酮的气味和旋光仪中旋光度的符号而得知。
Hence, the only difference in properties one should observe for the two carvones are the odors and the signs of rotation in a polarimeter.
改进了提纯L -丙交酯的方法，采用熔点、红外光谱、紫外光谱、数字自动旋光仪及高效液相色谱对提纯后的L -丙交酯进行了表征。
Improved the method of purification, the structure of lactide was characterized by the melting point, IR, UV, Digital Automatic Polarimeter and HPLC.
对于一般的野外工作建议用毛细管采集后使用便携式旋光测糖仪测其糖含量。
For studies in the field, the techniques of using capillary tubes to collect nectar and hand-held refractometer to measure sugar content are recommended.
对于一般的野外工作建议用毛细管采集后使用便携式旋光测糖仪测其糖含量。
For studies in the field, the techniques of using capillary tubes to collect nectar and hand-held refractometer to measure sugar content are recommended.
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