This article has shown that it is necessary to distinguish the eikonal function, effective optical path and geometrical length etc. of active medium while investigating optical resonators.
本文指出，在光学谐振腔的研究中应当区分用程函、有效光程、激活介质的几何长度等物理量。
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Analyzing the main yield characters such as stalk length, diameter, effective stalks per hectare and cane yield using the correlation and path coefficient of 12 varieties of sugar-fruit cane.