switch closure的意思|示意

One or more units may be turned on remotely, either simultaneously or in sequence, with a simple low voltage switch closure.

一个或多个单位可以远程开启，同时或顺序，用一个简单的低电压开关关闭。

Closure operation of binary relation plays an important role in network, parsing and detection and diagnosis of malfunction in switch circuit.

二元关系的闭包运算在网络、语法分析以及开关电路中的故障检测和诊断等领域有着重要的作用。

The utility model relates to a power switch used for a ventilating fan and a special pulling switch used for the closure and the linkage of shutter blades.

本实用新型是一种用于换气扇的电源开关和百叶闭合连动的专用拉线开关装置。