New systems must maximize the role of ecological mechanisms and emphasize the use of renewable resources . 新的系统应发挥生态机制的作用并重视可更新资源的利用。
2.
The department has appointed a committe to study the needs of bio - fuel producers . these are fuels like ethanol that are made from renewable resources 农业部任命一个委员会进行石化制造者的需求研究。这些石化燃料比如乙醇燃料是由可更新资源制造而成的。
3.
The grassland is one of the most important vegetation types in china and the most important renewable resource and raw material site of stock raising . it is a natural green protective screen of the earth which plays an important role to human existence and development 草地植被是我国最重要的植被类型之一，是重要的可更新资源和畜牧业的原料基地，又是地球表面天然的绿色屏障，对于人类的生存和发展起着重要的作用。
