A test analysis is made on macro-failure and micro-failure characteristics, metallography and corrosion mediums of U-type stainless steel bellows type expansion joints leaked.
对发生泄漏的不锈钢u型波纹管补偿器的宏观失效特征、微观失效特征、金相、腐蚀介质进行试验分析。
2
Firstly, the overall current macro-environment of this industry is provided, especially the key forces driving change in the U. S. automobile industry.
首先，目前这个行业的宏观环境，特别是推动美国汽车工业变革的重要力量。
3
And even on this point, the optimists who saw the bottom at mid-year are becoming more cautious as the latest batch of U. S. and global macro data has been, at best, mixed.