单词	成圈轮
释义	成圈轮 loop wheel
随便看	operational efficiency estimation operational efficiency evaluation Operational Electronic Intelligence operational element operational employment Operational Employment Concept Operational Employment Plan operational energy operational engine Operational Engineering Detachment operational envelopment operational environment operational environment software operational ephemeris operational equation operational equipment operational equipment requirement operational error operational error ratio operational evaluation Operational Evaluation Command Operational Evaluation Demonstration operational evaluation efficiency operational frequency tolerance band operational fuel