the paper mainly describes the construction characteristics, metal rails moding and key manufacturing technology of the large camber palisade reflecting antenna surface.
本文主要论述了大口径曲面栅状反射面的结构特点、反射面上高精度线条的制作及其关键制造技术。
the working principle of dk8110 multiple—point—road mold temperature control system is expounded in detail. with the heat transfer theory of plastics injection moding process, the cooling and heat…
较详细地阐明了dk8110型多点多路模温控制系统的工作原理,结合注塑过程热力传导理论,对该系统的冷却与加热进行设计计算。
hch-192 unsaturated polyster resin moding process is winding glass pipe and tank products specifically developes a type of benzene resin.
192不饱和聚酯树脂是为缠绕工艺成型玻璃钢管道、贮罐制品专门开发的一种邻苯型树脂。