【摘 要】
：
丙烯(丙烷)燃气国外六十年代就开始研究开发,主要用于金属的切割、钎焊、预热、变形校正、表面热处理等作业。到了九十年代初,我国才开始引进丙烯(丙烷)气,现正逐步推广应用
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丙烯(丙烷)燃气国外六十年代就开始研究开发,主要用于金属的切割、钎焊、预热、变形校正、表面热处理等作业。到了九十年代初,我国才开始引进丙烯(丙烷)气,现正逐步推广应用。丙烯(丙烷)气作为一种新型工业燃气,与乙炔气相比,具有优越的经济性、工艺性和安全性,以及良好的环保性能。
Propylene (propane) gas abroad began research and development in the 1960s, mainly for metal cutting, brazing, preheating, deformation correction, surface heat treatment and other operations. By the early nineties, China started to introduce propylene (propane) gas, which is now being gradually applied. As a new type of industrial gas, propylene (propane) gas has superior economy, process and safety as well as good environmental performance compared with acetylene gas.
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中国水利学会（Chinese Hydraulic Engineering Society）成立于1931年4月，前身是中国水利工程学会，出版会刊《水利》，李仪祉任第一任会长；
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