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【卫星通信概念】
释
earth station
地球站
卫星通信系统中的地面通信基站。
工学
卫星通信
释
earth station
地球站
实现卫星通信的地面设施,由向卫星发射无线电通信信号并同时接收来自卫星的无线电通信信号的设备系统组合。
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seedling gradation
seedling greenhouse
seedling harvesting,storing and shipping
seedling horse stool
seedling lifter
seedling planting
seedling quality
seedling raising in dryland
seedling raising in nutrition bowl
seedling rootstock
seedling rot of early-rice
seedling samping off
seedling seed orchard
seedling selection
seedling southern blight
seedlings raising covered with plastic film
seedling standing
seedling stem rot
seedling transplanter
seed longevity
seed magnetization processor
seed manure
seed-mediated transgene flow
seed moisture content of herbage species
seed multiplication of crop
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