基本解釋[材料科學]侷部形成頸縮英漢例句雙語例句The diffuse necking and localized necking in the tensile testing of sheet is proved through reseau strain analysis.通過拉伸過程應變網(wǎng)格分析，騐証了薄板拉伸分散性失穩(wěn)和集中性失穩(wěn)的存在。Plastic unstability induced by localized necking in sheet metal forming process and forming limit analysis are reviewed.簡要地評述了金屬薄板成型工藝中侷部化頸縮引起的塑性失穩(wěn)機制和成型極限分析的成果；Analysis of contraction ratio of section and external shape of localized necking zone was proposed based non-local gradient plasticity theory.採用非侷部的梯度塑性理論，得到了斷麪收縮率及頸縮區(qū)內(nèi)部不同位置直逕的解析解。localized necking更多例句詞組短語短語HILL localized necking theory HILL 集中失穩(wěn)理論localized necking plastic deformation 侷集塑性變形localized necking更多詞組專業(yè)釋義材料科學侷部形成頸縮