An illegal means of accessing computer data via a telephone link using a modem or acoustic coupler.
通过调制解调器或声耦合器连接电话线路而获取计算机内资料的一种非法手段。
According to the character of coupler curve of basic four-bar linkage, the synthesis method of output II link-group is studied.
根据各种类型的基础四杆机构连杆曲线的特性，研究了输出II级杆组的综合方法。
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