·2,447,543篇论文数据，部分数据来源于NoteExpress
通过改变载荷参数和结构参数，优化模型可用于其它塑料温室的气动四连杆天窗机构的设计。
The optimum programme can be used to design four-connecting lever pneumatic roof-window mechanism of all kinds of multi-span plastic greenhouses by changing load and structure parameters.
youdao
应用推荐
模块上移
模块下移
不移动