DS 2:连接整个星球。
Sit back, relax, and enjoy your connected home. Plug into Powerline with UPA. DS2: connecting the planet.
请坐好,放松,并开始享受你的联网家庭吧。使用UPA技术接入电力线网络。DS 2:连接整个星球。
The second law, the law of areas, states that a line connecting a planet to the sun covers an equal area over equal periods of time.
开普勒第二定律,也即面积定律,指出从太阳到行星所联接的直线在相等时间内扫过同等的面积。
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