Warning: file_put_contents(/www/wwwroot/ppbbu/cp667.com/cache/a8a3a7ac7c2fb2fc6b372381ff35c94b.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/cp667.com/index.php on line 55 retort stand例句_retort stand英汉例句_retort stand双解例句_淳朴汉英词典
It is constructed out of metal plates and rods, arranged helically around a retort stand, and shows one complete turn of the famous double helix. 它由一些金屬板和金屬棒搆架而成，螺鏇形的圍裹在一個蒸餾架上，展示了那個知名的完整雙螺鏇鏇轉。每個金屬片代表四個堿基之一。