metal chelates

• 金属配合物

metal chelates的用法和样例：

例句

1. It is difficult to state when the first metal complex was discovered.
   很难说出是什么时候第一次发现金属配合物的。
2. Polymetallicacetate is a kind of polynuclear metal complex with aluminum and thulium.
   该多金属醋酸盐是一种含铝和稀土的多核金属配合物。