应用拉伸试验和慢拉伸试验，研究X70管线钢电化学充氢后材料拉伸性能的变化。
Tensile tests and slow strain rate tests (SSRT) are used to investigate the mechanical behaviors of X70 pipeline steel after electrochemical hydrogen charging.
有些球员或许要把球一开始移动的时间差调整得快或者慢一点，但是幅度不会太大，充份的练习才是精通这个技巧的关键所在。
Some bowlers may find the timing of the initial ball movement may need to be varied slightly sooner or later, but not much. Practice is key to mastery of the skill.
采用恒载荷和慢应变速率动态拉伸实验方法，测定了X80管道钢在不同充氢条件下的氢致开裂门槛应力和断裂应力。
The threshold stress and fracture stress of hydrogen-induced cracking of X80 pipeline steel are studied by constant load test and slow stain rate test.
采用恒载荷和慢应变速率动态拉伸实验方法，测定了X80管道钢在不同充氢条件下的氢致开裂门槛应力和断裂应力。
The threshold stress and fracture stress of hydrogen-induced cracking of X80 pipeline steel are studied by constant load test and slow stain rate test.
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