Many characteristics of light quickly change as it moves through water.
许多光的特点在穿过水时迅速改变。
This represents characteristics of light hydrocarbons which are generated from rich-hydrogen source rocks.
这代表了一种富氢母源形成轻烃的特征。
It has the characteristics of light weight, good wet -proof behaviour and wearability, high usable frequency.
它具有重量轻、抗湿性能好、耐磨性能好、使用率高、便于施工和保证混凝土表面质量等特点。
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