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wave disturbance—

1. (Or wave-type disturbance.)
The disturbed state of a medium through which any
wave form of energy is being propagated.

2. In synoptic meteorology, same as wave cyclone,
but usually denoting an early stage in the development
of a wave cyclone, or a poorly developed one.

不過我不明瞭它的意思

可以請知道的人解釋一下

謝謝^^

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