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.
用脈沖法研究了催化劑用丁烯-2還原及還原催化劑用氧再氧化步驟。
Technology Progress in the Deep Processing of 2-Butene
2-丁烯深加工技術進展