準穩元素 的英文怎麼說
中文拼音 [zhǔnwěnyuánsù]
準穩元素
英文
quasi-stable element-
During the temperature fields, the results indicate that the processing parameters such as the extrusion velocity, casting temperature, perform preheating temperature, die preheating temperature and so on are important for the temperature fields besides the dwell time. they are must be in concordance each other to the deforming zone is in the quasi - solid state, and the stable semi - solid extrusion is implemented. during the deforming fields, the hyperbolic sine thermo - rigid - viscoplastic fem model is selected according to the forming feature of the process, and the variations of the stress - strain fields are studied
在溫度場的模擬中，模擬結果表明，保壓時間是影響製件成形質量的關鍵因素之一，擠壓速度、液態金屬澆注溫度、預制體預熱溫度和模具預熱溫度等工藝參數對溫度場的影響也很大，需進行參數之間的協調，只有當變形區內部始終維持準固態時，才能實現穩定的液-固擠壓成形過程；在變形場的模擬中，根據液態浸滲擠壓的成形特徵，選用了雙曲正弦剛-粘塑性有限元計算模型，研究了變形過程中應力應變場的變化規律，研究了模角對變形和金屬流動的影響及變形力的變化過程和其影響因素。Explicit stability criteria for general finite element formulations have not yet been developed.
對於一般的有限元素表達形式，還沒有得出顯式的穩定性標準。The sql language is a very well established standard for retrieving information from relational databases and has recently been enhanced with new facilities called " structured types " that support nested structures similar to the nesting of elements in xml
Sql語言是一個用於從關系數據庫中檢索信息的穩定標準，並且在最近還增加了名為「結構化類型」的新工具，用以支持類似於xml中元素嵌套的嵌套結構。
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