Chemists have developed a new range of fully biodegradable, non-toxic resins made from raw materials that are readily and cheaply available.
化学家们从随处可取的廉价原料中成功合成出了可完全降解的无毒树脂。
Although not produced from renewable raw materials, PCL is fully biodegradable when composted.
虽然不是来自可再生原料提炼而成，PCL是完全生物降解堆肥时。
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