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 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。
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