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.Catalysts that lowe...
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...
Directors weren't allowed any proprietary airs about the product they made.主管们不允许对他们生产的产品以所有者自居。The company has a proprietary right to the property.公司拥有这笔财产的所有权。We had to take action to protect the proprietary techn...