Conclusion The active calcium is a good calcium resource and can be extensively used in food additives and medic ines.
结论活性钙是一种良好的钙源，可以广泛用于食品添加剂和补钙药物。
The crab shell is the main components of portunid wastes which produced during the processing of the portunid, includes the rich resource of chitin and calcium, has the high use value.
梭子蟹的加工产生了大量的下脚料，其中蟹壳是主要组成部分，含有丰富的甲壳素和钙资源，具有较高的利用价值。
The paper represents the experimental research results of the mineralogical and mineral processing technologies for the development and utilization of the calcium iron garnet resource.
介绍为钙铁石榴石资源开发利用所进行的矿物工艺学和选矿提纯工艺的试验研究结果。
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