皮肤颜色、生活地点和暴露在外的皮肤面积大小,都会影响你的身体所能产生的维他命D的量。
Skin color, where you live and how much skin you have exposed all affect how much vitamin D you can produce.
比例也与房间里不同颜色的面积大小有关。
Proportion is also relative sizes of surface areas of different colors in a room.
面积大小不是定义一个国家的标准。
That's the work that the system is doing to the environment. I'm doing work to the environment. The work is negative, which means that work is being done to the environment.
功的大小,就是矩形的面积,这样我们就实现了一台热机,冷却,加热,加热,冷却,系统回到了初态。
Also, you'll notice that the size of the body part represented in the brain does not correspond to the size of the body part in the real world.
而且你会发现,身体部位在大脑中对应的皮层面积大小,与身体部位的实际大小并不一致
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