某厂松脂加工过程中，产生炼脂松香废水、歧化松香废水和二氢月桂烯醇废水等三股高浓度废水。
Three kinds of high concentrated wastewater, pine gum processing effluent, disproportionated rosin-making effluent and citronellol-making effluent have been produced in some plants.
介绍了用一步法、两步法合成甲基环戊二烯三羰基锰的过程，影响收率的主要因素。
The one step and the two steps used in the synthesis of MMT and their advantage and shortcoming are described.
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