concave side短语⁹⁰⁸⁸⁷⁺⁷ 基本例句 un.凹岸面；🌏凹面；凹侧；脊椎侧弯的凹面 The results show that the cooling effectiveness on concave/span> side is better than suction side with laying film cooling holes in concave side at leading edges of turbine blade. 结果表明，叶片前缘压力面侧布置的气膜孔对叶片压力面有很好的冷却效果； pcsee