completely biodegradable完全可生物降解 natural substance derived from natural self-replenishing process天然物质源自天然自补过程 ..
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The raw material, auxiliary materials of the product are all renewable resources , which could be completely biodegradable.
该项目产品所选用的原、 辅材料全部为可再生资源，具有完全生物降解的特性。
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