Information distribution system, terminal apparatus used in such system, recording medium on which program is recorded, and loop connection avoidance method.

信息分发系统，该信息分发系统中应用的终端设备，记录程序的记录介质以及环路连接避免方法。

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Elevator group become to loop connection, each in the loop has group control dispatch function if one or some have malfunction, the rest can be assured of normal service.

群控电梯呈环状连接，环中没台电梯都具备群控调度功能，其中一台或几台故障，其余电梯运行服务仍得以保证。

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Mechanical and structural connection: structural connection with bolts type structure or fast open loop connection, also can promote the kettle cover, axe body can be taken down.

机械和连接结构：连接结构采用螺栓式结构或快开式卡环连接，同时釜盖可提升，釜体可取下。

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