We always reject zero as an eigenfunction on the ground of physics.根据物理上的理由,我们总是剔除把零作为本征函数.The stable field problem is discussed in rectangle area with method , which are eigenfunction and superpositionle.文章结合叠加原理,应用本征函数...
灯光照在满是灰尘的墙上，反射回苍白的冷光。Lights reflected off dust-covered walls creating a ghostly luminescence.冷光技术是一项全新的技术, 应用范围非常广泛.Cold light technology is a new technology, a very wide - ranging applications.结果就会带来更加宽广的亮度和非比寻常的冷光.The ...