the characteristics of lead pollution的意思|示意
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铅污染的特点
the characteristics of lead pollution的网络常见释义
Pb污染特征 pb污染特征
the characteristics of lead pollution相关例句
The concentration of lead in atmosphere and the main types and emission characteristics of pollution sources in China are summarized and estimated.
总结和评价了我国大气铅浓度水平、大气铅污染源的主要类型和排放特征，对今后我国大气铅污染发展趋势进行了说明。