The simple experimental circuit contact material is designed using time relays with digital display, contactors, switchgear and resistive load.

利用数字显示时间继电器、交流接触器、断路器以及电阻性负载设计了一个简易的触头材料实验电路。

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At present most of the existing domestic testing press, hot press are all manually operated, or use time relays, switches, etc. as control elements.

目前，国内现有的试验压机、热压设备多为手动操作，或采用时间继电器、行程开关等作为控制元件实现一定程度的自动操作。

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This value can be used with the drive current capacity specification for a switch mainframe to determine how many relays the mainframe can close at one time.

该值可和开关主机的驱动电流容量一起来确定主机内同时可闭合多少继电器。

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"Eight people at a time work in relays to carry the stretcher down the mountain with pathfinders checking the route, " said Mr Jones.

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Prime time is no longer filled with beach volleyball and freestyle relays.

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His time at the Royal Opera House saw access to performances widened through nationwide big screen relays, the introduction of special low-price ticket schemes and the purchase of a DVD company, Opus Arte, to distribute recordings globally.

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