自然废弃物

natural wastage───自然损耗；自然流失

natural gasses───天然气

natural gas───[油气]天然气

natural gases───天然气（naturalgas的复数）

natural disaster───自然灾难，[环境][农]自然灾害

natural justice───自然公正；自然正义

natural causes───自然因素

The invention belongs to multipurpose use of natural waste and the technical field of chemical production.───本发明属于天然废弃物综合利用以及化工生产技术领域。

uric acid, a natural waste product, can lead to a painful inflammation of the joints called gout, a form of arthritis that typically occurs in middle-aged men.───尿酸是一种天然产生的废物，尿酸的积聚会导致发生一种很痛苦的称为痛风的关节炎症，这是关节炎的一种表现形式，常发生于中年男性。

Green business - sustainable, eco-friendly or natural - operates in a way that conserves natural resources, eliminates waste and minimizes emissions and harmful discharges.───商业绿色化——可持续的，生态友好的，自然的——是由保存自然资源，消除浪费，最大限度地减少废气排放和有害排放物来操作的。

Organic farmers, therefore, often prefer using natural waste from animals as fertilizer.───因此，有机耕作的农民通常喜欢把天然的动物粪便当作肥料。

Putting natural waste from animal in their fields, they argue, makes the soil richer in minerals and so more fertile.───“把来自动物的废料（排泄物等之类的）施在他们的田野”，他们争辩道，“会使泥土更富含矿物质更肥沃。”