| 释义 |
lead content短语¹⁴⁴⁹⁷²⁺²
基本例句
铅含量
Objective:The modern industry and the transportation development, the lead pollution question has been more and more prominent, in the blood the high lead content seriously affects child's health.
目的：现代工业和交通的发展，铅污染的问题已越来越突出，血内高铅含量严重影响儿童的健康。 cnki |