The vibration behaviour of sandwich structure with spring interlayer is studied.研究了具有弹性夹层的层板结构的振动特性.There are many interlayer sliding belts in Siding Pb - Zn mine.层间滑动带在泗顶矿区非常发育.The stiffness matrix of synthetic dual pla...
The vibration behaviour of sandwich structure with spring interlayer is studied.研究了具有弹性夹层的层板结构的振动特性.Sandstone type uranium deposits in interlayer oxidation zone are large or super large and in - situ leachable.层间氧化带砂岩型铀矿...
Her novels are infused with sadness.她的小说充满哀伤。'Scene with a Winding River' (1827) is a near-monochrome portrayal of a wood infused with silvery light.《有弯弯河流的风景》（1827年）是一幅近乎单色调的绘画，描绘的是沐浴在银色光线里的一片树林。His arrival in...
Prawn aquaculture is the industry of important economy pillar of Asia area.对虾养殖业是东南亚地区的重要经济支柱产业.Development of aquaculture offers another means of supplying man with fish protein.水产养殖业的发展为人类获取鱼蛋白提供了另一种手段.The aquaculture ...