系统不能探测到静止的物品, 而当信号暂时被一个移动的物品(比如一个人)阻挡, 强度变量会响亮而清晰.

The need for variation means the system cannot see things that are stationary. When the signal is temporarily blocked by a moving object such as a person, however, it shows up loud and clear.

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圆形挂窗逐渐显出发光的几何纹路，当光照强度改变，光纹亦不断变幻，有时明亮，有时隐约含蓄。 挂窗中的置物隔板未与边框相连，如同静止悬浮般。

With the passage of time and the change of light, the glowing background of the casement is constantly changing, sometimes bright, sometimes subtle.

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