The first catalytic converters were called conventional oxidation catalysts.最初的转化器叫做常规氧化催化器.Many processes that are essential to the chemical industry use heterogeneous catalysts.很多重要的化学工业过程就是使用多相催化剂的.The producing techn...
From that day on, the farmer would not flagellate his ox anymore.从那天起，农夫再也不鞭打牛了。A single - celled microorganism, especially a flagellate protozoan of the genus Monas.单胞体 单细胞 的微生物, 尤指单''.'胞'. '�...