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。
Their main aim is to ensure that raw materials and parts are readily available to meet the production targets set. Certain cost …
他们的主要目的是为了保证原材料和部分是现成的，满足生产目标。
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