而叶片增厚对燃气轮机输出功率的影响与燃机运行中的积垢非常相似，必然会引起功率下降。因而，本文从理论上阐明了某些燃气轮机出力不足的必然性。
While the effect of blade thickening on gas turbine output is very much similar to that of blade deposition, the decrease of output will be evident.
导致航空发动机性能衰退的形式有很多种，其中由积垢沉淀因素造成的叶片粗糙度增大是具有代表性的原因。
There are many factors leading to the aero-engine performance declination, especially roughness increase caused by the lamina fouling is a typical reason.
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