Radiant energy density
[化] 辐射能密度
🧩 词语组成解析
🗣️ 情景例句
We communicate with each other by letter.
我们用书信彼此联系。
I slipped on the stairs and fell down.I broke my leg.
我在楼梯上滑倒了并且掉下来我弄断了腿的。
From the top of it, you could see up to a distance of 130 kilometres on a clear day.
在晴朗的日子里，从楼的顶层你可以看到130公里远的地方。