The causes of inner transversal crack of cold-draw heavy wall pipe of 45 steel were analyzed.
针对45钢冷拔厚壁管存在内表面横裂纹问题，分析了其产生的原因。
2
It was time of great changes in the world and some people wanted to draw China into the debate in the world about the right and wrongs of the cold war and its related issues.
当时世界进入重大变革，一些人想将中国拖入围绕冷战的是是非非而进行的争论中。
3
For years after the cold war, the orthodoxy was that Russia did not pose a threat, so NATO did not need to draw up contingency plans to protect newer members, such as the Baltic states.