The three-dimensional heat conduction equation for steady state operating conditions of bipolar microwave power transistors has been solved.
本文对双极性微波功率晶体管(以下简称微波功率晶体管)求解了稳态工作条件下的三维热传导方程。
This paper measured the non steady state temperature field of cylinder head in an air cooled engine. It analysed the temperature variation under transient operating conditions of engine.
本文对车用风冷发动机汽缸盖的非稳态温度进行了实测，分析了启动、突加和突减三种过渡工况下汽缸盖温度的变化规律。
The automobile engine is usually worked under non steady state of transient operating conditions, i. e. starting, warming, suddenly loading and unloading.
汽车发动机经常在非稳态的过渡工况下工作，即启动、暖机、突加和突减工况。
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