加拿大进出口外贸 翻译求助急急急 在加拿大 Isocyanate derived aerogels: Convenient, inexpensive synthesis of polyurethanes and polyureas, and also of polyimides and polyamides Hood minimum hold open effort, Hood structural reliability. 大家好这两句是什么意思？麻烦帮我大...华人论坛 日期：2022-06-26