常见例句雙語例句In a four-stroke diesel engine , the cycle requires four separate strokes of the piston , suction , compression , expansion and exhaust.一個四沖程的柴油機包括活塞四個獨立的沖程， 吸氣、壓縮、膨脹和排氣。mei.jmu.edu.cn 返回 exhaust suction stroke