The invention provides a luminous device and the producing method thereof.
本发明提供一种发光装置及其制作方法。
In respect of the producing method, refined and high unmixed salt is usually made by multiple effect evaporation in vacuum, when man-made bittern is needed.
从制取方法上来讲，多效真空蒸发制盐是生产精制盐及高纯工业盐的重要方法。
The spherical cobalt oxalate powder prepared by the producing method has fewer impurities and better appearance, and can be prepared by a simple and efficient production method.
本发明的球形草酸钴粉体及其制造方法制得的球形草酸钴的杂质更少、形貌更好，且能够通过简捷高效的生产方法制得。
The invention discloses a layer structure with active carbon and the producing method, which solves the problem of the prior art of complicated procedure and high cost.
本发明公开了一种具有活性碳的布层结构和制法，为解决现有技术中生产程序复杂、成本高等缺点而发明。
The producing method of this material is simple, the energy consumption and the production cost are low. It has good performances and is a new type of road cem...
该新型道路材料生产工艺简单，生产能耗低，成本低，性能优良，可作为道路水泥的换代产品。
The producing method of this material is simple, the energy consumption and the production cost are low. It has good performances and is a new type of road cem...
该新型道路材料生产工艺简单，生产能耗低，成本低，性能优良，可作为道路水泥的换代产品。
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