thermal expansion and contraction

welding involved in stress is due to uneven thermal expansion and contraction generated.

焊接参与应力是由于热胀和收缩不均匀产生的。

The low melting-point eutectic films crack under the welding tensile stress caused by thermal expansion and contraction of magnesium alloy. The formation mechanism of liquefied cracks is similar to crystallization cracks.

液化裂纹的产生机理与焊缝结晶裂纹相似，即同样是在低熔点的液态薄膜的形成和焊接拉应力作用下产生。

The paper summarized the negative thermal expansion coefficient compounds and their contraction mechanism reported in recent 20 years.

综述了近20年有关负膨胀系数化合物及其收缩机理的报道；

therefore the object is to produce the phenomenon of thermal expansion and contraction of the premise of thermal stress.

因此，物体热胀冷缩现象是产生热应力的前提。

As the spray coating line is in the non-linear distribution, the stress of a spray coating material due to thermal expansion and contraction can not deform the filling structure.

由于喷涂线呈非直线分布，喷涂材料热胀冷缩产生的应力不会导致填充结构变形。

testes in the scrotum outside the body, the thermal expansion and contraction from the scrotum to regulate the testicular temperature.

外的身体阴囊睾丸，热膨胀和收缩的阴囊调节睾丸温度。

Discussion on new-type colligation demonstration meter on thermal expansion and contraction of solid and exploring of physical principle

新型固体热胀冷缩综合演示仪与相关物理原理的讨论