常見例句The design of the structure of Caseegrain drawtube in space remote instrument was introduced.The product model was constructed using 3-D CAD technique. 摘要介紹了空間遙感儀器中卡塞格倫鏡筒的結構設計，利用三維CAD技術構建了產(chǎn)品模型。 返回 Caseegrain