论文部分内容阅读
本文阐明了各工业国家推行的风管构造及我国的现状,提出了若干改进措施,采取措施后可节约1/4以上的金属材料与1/5以上的劳动力。
This article clarifies the construction of wind pipes in various industrial countries and the status quo in China, and puts forward some improvement measures. After taking measures, it can save more than 1/4 of metal materials and 1/5 of the labor force.