The difficulties of calculation are to establish the temperature field of structure under the action of ambient temperature and to calculate the thermal stress and thermal deformation.
其计算难点是建筑结构在环境温度作用下的温度场的建立与对应的温度应力和温度变形的计算。
When adding stress with ambient temperature storage, the formation of tin whisker was completely inhibited.
当施加恒定外应力后进行室温处理，锡须的形成完全受到抑制。
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