按上述破坏图形推导了圆环板内力计算公式；
A set of formulas for the calculation of internal stresses are derived according to the two new failure diagrams.
根据板的理论，对内缘固接圆环板在横向载荷作用下进行了解算，并编制了计算机程序。
Based on the theory of plates, a solution is given to the ring plate of which the inner rim is rigidly coupled under transversely concentrated load, with a computer program provided.
从基尔霍夫绕射公式出发进一步研究菲涅耳区板的二维圆环的分区规则。
The zoning rules for two dimensional ring of Frensel zone plate is studied by means of Kirchhoff diffraction formula.
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