Secondly, two dimensional conductive model of cooling jacket was set up and numerical simulation was carried out using one dimensional results. Temperature field in cooling jacket was computed.
其次建立了推力室的冷却套二维导热模型，使用数值模拟的方法和一维计算的结果，得到了冷却套的温度场。
Two- and three-dimensional maps are helpful tools in planning excavations, illustrating how sites look, and presenting the results of archaeological research.
二维和三维地图是规划挖掘工作的有用工具，可以描绘遗址的外观，并展示考古研究的结果。
The joining of the amino acids into a chain results in the formation of a polypeptide chain which then folds into the compact, globular three-dimensional structure that is a functional protein.
氨基酸连接起来形成多肽链，多肽链又折叠压缩成球状三维结构的功能蛋白。
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