常見例句雙語例句The influence of heavy metal and Boron on the invertase, urease and catalase of soil Boron tailing pond in Dandong Kuandian of Liaoning province were investigated.本文研究遼甯省寬甸硼鑛區(qū)尾鑛庫重金屬及硼汙染對土壤轉(zhuǎn)化酶、脲酶和過氧化氫酶的活性影響。 返回 boron tailing pond