主亮度
参考答案:
指由于光知觉所产生之任何有关光感觉之主要属性,包括对于所有之明亮度、光照度、辉度、暗淡度或黑暗度之视觉属性。
The speaker says that the periods of seismic activity are increasingly complex and may cause the earth to wobble.
“因势变法”