2014年初中毕业升学考试英语作文集锦151:火

However, tables are widely employed . We think it’s suitable to show the catalysis efficiency by tables in the present work since the conversion of styrene oxide, the selectivity as well as yield towards styrene carbonate were given and discussed in detail. The calculation equations for the conversion of styrene oxide, the yield and the selectivity to styrene carbonate have been supplied. Please see the section of “Determination of conversion, yield and selectivity” in the revised version.