“Direct Broadcasting Satellite (DBS) Service”的概念、定义、翻译、参考文献-科学参考

单词	Direct Broadcasting Satellite (DBS) Service
释义	Direct Broadcasting Satellite (DBS) Service Encyclopedia 工学直播卫星释 Direct Broadcasting Satellite (DBS) Service直播卫星业务利用直播卫星开展的卫星视频和音频广播业务，用户或最终用户直接从同步轨道直播卫星接收信号的卫星电视系统，信号以数字格式在微波频率下广播。
随便看	commutative ring commutative ringed space commutative scheme commutative semigroup commutative subgroup commutative subspace lattice commutative superalgebra commutative valuation commutativity commutativity condition commutativity relation commutator commutator algebra commutator calculus commutator closed group commutator factor group commutator group commutator ideal commutator identity commutatorless motor commutator operation commutator product commutator quotient group commutator series commutator subgroup

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