The rain height is used as one of the most important parameters, to predict rain attenuation along an Earth-space.
降雨高度是地-空路径雨衰减预测中最重要的参数之一。
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The motor-cable device was modified so that the optimal control was realized by passive control, with less energy used for the space structure vibration attenuation.
The rays prevalence is a mystery because space weathering effects such as dust accumulation and solar wind attenuation should be greater on Mercury than on the Moon.