定时开关

暖气靠定时开关自动供热。

The heating is on a time switch .

你们有那种装有定时开关器的吗？

Customer : Do you have the one with a time switch ?

他按了一下定时开关。

He flipped the timer switch .

但是，大多数建筑物仍然沿用传统的照明控制方式，部分智能大厦采用楼宇自控（BA）系统来监控照明，但也只能实现简单的区域照明和定时开关功能。

However , most buildings are still using the traditional lighting control methods . Some smart buildings use Building Automation ( BA ) systems to monitor lighting , but only simply regional lighting and timer switches .

介绍了固态继电器（SSR）的基本原理，以SSR为核心，采用定时器、单片机和PID调节器等控制SSR的方法进行了定时开关控制器、程控烘箱和玻璃退火炉的调功加热设计。

The fundamental of the solid relay was introduced . Using timer , SCM and PID adjuster to control solid relay , the timer controller , programmed oven and glass anneal furnace heating by adjustable power were designed .

分析了几种定时开关电器设计方案的利弊；

The advantages and disadvantages of several designs for auto-timing controller are analysed .

天黑时用自动定时开关打开房间的灯。

Use automatic timer-switches to turn your lights on when it gets dark .

集中供热设备是定时开关的。

The central heating is on a time-switch .

一款电子定时开关电路

The Switch Circuit of Electronic Timing

自动开关的选择定时开关电器

Selection of Automatic Switches Auto-timing Controller

本文介绍了微电脑定时开关控制系统的研制及它的优点。

The research and manufacture of the Microcomputer time on and off control system and its feature are introduced .

功能多，既可作定时开关，也可当普通开关使用。

Not only can the switch be used as a timing switch , but also be used as an ordinary switch .

特别是设置了烘干定时开关，人们只需启动电源即可达到烘干毛巾的目的，操作方便。

Particularly a time switch is arranged ; therefore people can dry the towel only through opening the power source with convenient operation .

这表明，冷起动喷油器定时开关断路，使冷起动喷油器始终不能正常工作，导致冷启动困难问题出现。

This indicates that the cold start injector time switch circuit , so that the cold start injector is not always participate in the work , leading to cold start problems .

只要根据需要设定定时开关的通断时间及间隔，就可自动定时定量供油。

Oil can be supplied automatically at a definite time and by a definite quantity so long as setting the on-off time and the on-off time space of the time switch as required .

机体上还设有负离子输出孔，定时开关、电源指示灯、进风口及电源线等。

The machine body is also provided with a negative iron output hole , a timing switch , a power supply indicator light , a wind inlet , and a power supply line , etc.

基于Protel的555定时交流开关电路板的设计

The Design of the 555 Time-Setting Alternating Switch Circuit Board Based on Protel

产生可控定时的开关量信号；

Secondly , it can output a switch and timing signal .

该系统采用多路定时转换开关、7065数字电压表、IEEE488标准接口，在486微机控制下，对采集的数据进行处理，建立陀螺漂移模型和温度模型。

7065 digital voltmer and IEEE-488 standard interface . Obtained adta being processed by a 486 computer , drift coefficient model and temperature model of the gyroscope are built .

当使能端的电压为低电平时，芯片处于关断状态，静态电流及静态功耗很小。通过对使能端的控制可方便地实现芯片的遥控、定时、开关控制等功能。

When the EN pin is low voltage , the chip operates in shutdown mode and its static current and power dissipation is low , so it is easy to realize remote and timing control .

介绍了用555定时器构成的单稳态触发器的工作原理，对其功能作了进一步探讨，在此基础上设计了一种具有实用价值的定时-非定时两用开关。

The working principle and the functions of the monostability multivibrator composed of555 timer are introduced in the paper , and the time switches are designed .