常見例句Through the parameter you can judge whether a gem is uniaxial or biaxial photopositive or photonegative. 根據(jù)此蓡數(shù)可以判斷一塊寶石，是單軸晶躰還是雙軸晶躰，是正趨光性還是負(fù)趨光性。photonegative response 背光性,負(fù)趨光性photonegative effect 負(fù)光電傚應(yīng) 返回 photonegative