THERMISTOR, A temperature sensitive resistor whose    熱敏電阻，

resistance changes with a change in temperature.        一種電阻值隨溫度的變化而變化的對(duì)溫度敏感的電阻。

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THERMOCOUPLE, Two different metal wires joined at        熱電偶，

both ends for temperature measurement. When both           用來(lái)量取溫度，兩端相連的兩根不同金屬導(dǎo)線。當(dāng)兩端

junctions are at different temperatures, an electric     之間有溫差時(shí)，金屬絲內(nèi)即產(chǎn)生與溫差成比例的電流。

current is produced proportional to the temperature

difference.

THERMOSTAT, A component set to operate at a              恒溫器，

definite temperature for controlling electric circuits and 用來(lái)在一定溫度下操作，以控制電路和活門(mén)的部件。

valves.

THERMOSTATIC SWITCH, A heat controlled,                  恒溫電門(mén)，

temperature sensitive switch which opens at a preset        一個(gè)熱控的、在預(yù)定溫度斷開(kāi)的熱敏電門(mén)。

temperature.

THR HOLD, SEE -THROTTLE HOLD                             油門(mén)保持，

                                                           見(jiàn)Throttle Hold．

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英漢對(duì)照民用航空詞典                                   BOEING

THRESHOLD (NO. 1), The bottom part of an opening in 門(mén)檻，

a fuselage doorway.                                  機(jī)身艙門(mén)開(kāi)口的底部。

THRESHOLD (NO. 2), The approach end of the runway.  跑道頭，

                                                     機(jī)場(chǎng)跑道到場(chǎng)的一端。