保健餐包括那些尽可能不予以加工的天然食品，就是说，这些食品里不含盐厂食物保鲜期的防腐剂。
Health food includes natural food with minimal processing, i.e., there are no preservatives to help it last longer or other chemicals to make it taste or look better.
对焦化厂循环水管道的化学清洗和防腐处理技术进行了研究，并给出了实施方案。
The technology of chemical washing and anticorrosive treating for pipes of cyclic water in coking factory was studied. and the plan for the implementation is given.
介绍了MC - 3彩色屋面防腐防水涂料在贵溪冶炼厂阳极炉工程屋面上的应用及具体施工工艺。
The application and construction technology of MC-3 colour roof coating of anticorrosion and waterproof on the roof cathode furnace project in the Guixi Smeltery are introduced.
应用推荐