很多热量从燃烧室散发出来，直接进入废弃排气系统，一部分热量进入了发动机去预热发动机。
A lot of the heat from this combustion goes right out the exhaust system, but some of it soaks into the engine, heating it up.
为了避免直接加热器所产生的燃气中的冒烟对主燃烧室冒烟测量带来的误差，该冒烟测量是在主燃烧室常温下进行的。
To avoid error in combustor smoke measurement brought by burned gas from direct heater, measurements were made at a normal temperature.
航空发动机燃烧室出口温度的高低及出口温度场的均匀程度，直接影响到发动机的工作寿命和输出功率的大小。
The aero-engine combustion outlet temperature makes a strong impact on the life of engine and the power of the engine output.
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