假设有一个双星系统,只能看见一颗恒星,另一个看不见,一个恒星,有三条清晰吸收线。
Suppose you have a binary system that only one star is visible and the other one is invisible and the one star shows you three clear absorption lines.
一个活性污泥系统包括一个均衡盆地，一个沉淀池，曝气盆地的，一个澄清和污泥回收线。
An activated sludge system consists of an equalization basin, a settling tank, an aeration basin, a clarifier, and a sludge recycle line.
简单地讲，这个系统将输电线和路面下的线圈相连接，通过空气将电能传输给汽车里面的接收线圈。
In basic terms, the system has power lines connected to coils under the surface of a road, which then transmit the electricity through the air to a receiver coil in a car.
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