膜应力;薄膜应力
The mathematic model of the membrane stress is found;
建立了薄膜应力的数学模型;
In general, the boundary stress between every kinds of reducer with tube may be ignored for circumferential membrane stress in engineering.
计算环向薄膜应力时,一般来说,工程中各种异径管与连接直管之间的边缘应力可以忽略。
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