butene-2
美
英 
例句
The reduction step of catalyst with butene-2 and reoxidation step of reduced catalyst with oxygen were investigated by the pulse method.
用脉冲法研究了催化剂用丁烯-2还原及还原催化剂用氧再氧化步骤。
Technology Progress in the Deep Processing of 2-Butene
2-丁烯深加工技术进展