Warning: file_put_contents(): Only 0 of 8291 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu.com/index.php on line 58 drawtube例句_drawtube英汉例句_drawtube双解例句_英語字典
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。