Edge of the spring wave annular plate forms a combination part.

弹波环板外环端缘形成结合部.

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The shell is provided with a flue gas inlet, an annular plate and annular side plate.

壳体具有烟气进口 、 环形底板和环形侧板.

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The three - type casing heads - annular plate type, simple type and normal type are used in China.

国内各油气田使用的套管头分为环形钢板 、 简易套管头和正规套管头三大类,它们在现场使用中均存在一些问题.

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In half - space the investigation of dynamic characteristic of axisymmetric transversely isotropic circular and annular plate finished.

研究了空间轴对称横观各向同性圆板和圆环的动力特性.

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