It was also found that higher concentration of rosin in flux is beneficial for shear creep resistance of the joints, while its effect on the instantaneous shear strength is less obvious.
焊剂中较高的松香浓度明显有益于焊点的抗剪切蠕变强度，而对瞬时剪切强度影响不大。
It is indicated that the spall strength equations determined by the traditional methodology are valid only for the numerically simulated 'pullback' by a local instantaneous critical stress criterion.
研究指出，传统方法确定的层裂强度测定方程仅仅可能对采用瞬时层裂准则得到的数值模拟的层裂信号有效。
Unique film layoff mechanism and constant tension film conveyor are adopted, featuring instantaneous film cutting, automatic film connecting and wrapping and higher strength after shrinking packing.
独特的薄膜放卷装置及薄膜恒张力输送，薄膜瞬时切断，自动搭接裹膜方式，收缩包装后强度更高。
Unique film layoff mechanism and constant tension film conveyor are adopted, featuring instantaneous film cutting, automatic film connecting and wrapping and higher strength after shrinking packing.
独特的薄膜放卷装置及薄膜恒张力输送，薄膜瞬时切断，自动搭接裹膜方式，收缩包装后强度更高。
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