常見例句Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative. 根據(jù)此參數(shù)可以判斷一塊寶石,是單軸晶體還是雙軸晶體,是正趨光性還是負趨光性。photonegative response 背光性,負趨光性photonegative effect 負光電效應 返回 photonegative