常见例句雙語例句The design of the structure of Caseegrain drawtube in space remote instrument was introduced. The product model was constructed using 3-D CAD technique.介紹了空間遙感儀器中卡塞格倫鏡筒的結搆設計，利用三維CAD技術搆建了産品模型。 返回 drawtube