forms of nitrogen

• 不同形态氮

forms of nitrogen的用法和样例：

例句

1. The distributions and functions of various forms of nitrogen in the biogeochemical cycling in the southern Yellow Sea surface sediments were investigated.
   本文报道了南黄海表层沉积物中不同形态氮的区域分布特征及其在生物地球化学循环中的作用。