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- Characteristic analysis of an isentropic light piston tunnel
等熵轻质活塞风洞的特性分析 - Designs , produces , and supports light piston - powered and turbine - powered helicopters
设计、生产和支持轻型活塞与涡轮直升机。
Last modified time:Sun, 17 Aug 2025 00:29:56 GMT