trapped air短语⁹⁰⁸⁸⁷⁺⁷ 基本例句 残存空气 The paper is smoothed and pressed to remove trapped air. 纸张经过压平，纸张中的气泡将被去除。 ebigear The piston moves up and compresses the trapped air fuel mixture that was brought in by the intake stroke. 活塞向上移动时，压缩在进气行程中吸入的混合气。 tianya