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.
方法：采用四点弯曲细胞力学加载仪对成骨样细胞MG - 6 3分别以不同强度的张应力进行力学刺激，并对其受力后的增殖状态进行了研究。
Methods: the osteoblast-like cell MG-63 were stimulated with different amplitude by four-point-bend loading device, and the different proliferative index after tension-stress load were studied.
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