Nitric nitride was used to produce nitrogen.

含化物则来制。

Fish pee is full of ammonia, a nitrogen containing compound, and phosphorous, both nutrients that plants crave.

鱼尿液富含氨，这是一种含和磷化合物，这两种营养物质都是植物急需。

But they survive by storing nitrogen-containing wastes in their bodies and having a resident group of bacteria recycle the nitrogen into useful molecules for them.

蟑螂在其体内储存含废物来存活，并且有一群常住细菌将气回收利成对它们有分子。

To understand where the uric acid comes from, let's start with purines, which, together with pyrimidines, are nature's most common nitrogen-containing heterocycles.

为了说明尿酸从何而来，让我们先来了解嘌呤和嘧啶，它们都是自然界中最常见含杂环。

And scientists say it will grow larger in years to come, if something is not done to reduce the amount of nitrogen in the Mississippi River.

科学家说如果不采取措施减少密西西比河含量，未来几年死水区面积会扩大。

Other researchers have also found some superacids that bond really well with nitrogen oxides, gases made of both nitrogen and oxygen that are released in car exhaust, become smog, and lead to acid rain.

另一人员还发现一超强酸与氧化物结合很好，汽车排放含和氧组成尾气会造成光化学烟雾污染，进一步形成酸雨。

To avoid taking those extra steps, expert composters might add extra wood chips or paper products to the pile, since they have a lot of lignin — a tough component of plant cell walls which doesn't contain any nitrogen at all.

为了避免这额外步骤，专业堆肥者可能会往堆肥中再加入一木屑或者纸质品，因为它们含有大量木质素，一种完全不含坚韧植物细胞壁成分。