The paper presents characteristic of a explosion-proof combined switch and application of the programmable controller in switch design.
介绍防爆组合开关的使用特点，以及可编程序控制器在组合开关设计中的应用。
The explosion-proof function switch also can be the clarinet switch which is composed of the clarinet body and the touch foot of junction circuit.
所述具有防爆功能开关还可为单簧管开关，所述单簧管开关是由单簧管管体和连接电路的触脚构成。
Take several kinds of lifting door structure of explosion-proof electric apparatus switch as example to analyze its strong and weak points and its suitable situation.
文章以隔爆型电器开关的几种提升式开门结构为例，分析其优缺点，以及其各自适用的场合。
The box is of combined type, its switch compartment is of explosion-proof structure, busbar and outlet compartment adopt safety-increased structure.
本产品为复合型，开关箱采用隔爆型结构，母线箱及出线箱采用增按型结构。
The entire switch without a moving contact surface has high explosion proof and waterproof function, meeting the requirement of chemical industries, coal mines, underwater, and milling working.
整个开关没有动接触面。所以具有较高的防爆防水性能。满足化工，煤矿、水下，制粉作业的要求。
The telephone is used with the explosion-proof coupling of HOB-1 and connect to program controlled switch to form explosion-proof communication system.
话机与关联设备HOB-1型防爆耦合器配套， ● 户内、户外 与交换机连接，组成防爆电话通讯系统。
The telephone is used with the explosion-proof coupling of HOB-1 and connect to program controlled switch to form explosion-proof communication system.
话机与关联设备HOB-1型防爆耦合器配套， ● 户内、户外 与交换机连接，组成防爆电话通讯系统。
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