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spread to传到； 波及； 蔓延到spreadv.传播；展开；散布；铺开；伸展；涂撒n.范围；传播；差额；幅度；盛宴Spreading activation model Of retrieval提出的扩展激活模型spread spectrum communication technology扩频技术spread spectrum code-sequence generator扩频码序发生器spread technological knowledge to farmers技术下乡spreading short-trunked tree of Japan.一种日本乔木,树干短小,伸展。Spreading knowledge is sowing happiness.散播知识就是在播种快乐。spread-spectrum code-sequence generator展宽频谱代码序列发生器Spread technological knowledge to farmers.技术下乡。spread orthogonal frequency division multiplex扩频正交频分复用