thermal time delay relay

例句：

1. 1. The thermal time delay relay is used to control the temperature of the furnace.
   热时延继电器用于控制炉温。
2. 2. The thermal relay is a type of electronic device that detects changes in temperature andcontrols the flow of power.
   热继电器是一种电子装置，用于检测温度变化并控制电力流动。
3. 3. In this circuit, the thermal relay acts as a switch, allowing power to flow only when the temperature reaches a certain level.
   在这个电路中，热继电器作为开关工作，只有当温度达到一定水平时才能让电流流通。