According to this method, a half infinite medium located in cylindrical coordinate system is made discrete by adopting unequal interval mesh.
此法采用不等间隔的网格，将置于柱坐标系中的半无限介质进行离散化。
The main products are: welded wire mesh machine for small and medium-sized welded wire mesh machine.
主要产品有：小型电焊网机和中型电焊网机。
A cog (16), a lower gear (15) and a medium gear (13) inside a medium wheel box (11) are fixed mesh connection.
介轮箱(11)内的上齿轮(16)、下齿轮(15)和介轮(13)是固定啮合连接。
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