UID:38985
UID:59403
UID:104606
UID:27101
UID:306669
UID:307754
flightpig:光通量是整個燈泡的功率,而光強度是指單位立体角的功率,是不一樣的,先把光學各個單位的定義看一下吧。 (2008-05-08 09:36) {PkR6.XhR
UID:289148