论文部分内容阅读
一、我国的铅锌资源优势据美国矿务局的统计,国外铅锌资源总储量分别为14697万吨和13410万吨。按国外铅锌的产量(铅360万吨、锌617万吨)水平估计,国外铅锌储量还可开采使用铅四十年、锌二十年。我国铅储量居世界第二,仅次于美国;锌储量居世界第一。我国铅锌产量和消耗量都还较低,而且消费量略大于产量,还需少量进口。按目前产量计,我国铅锌储量还可开采使用一百余年,比国外使用年限高好几
First, China’s lead and zinc resource advantages According to the United States Bureau of Mines statistics, the total reserves of foreign lead and zinc resources were 146.97 million tons and 134.1 million tons. According to foreign lead-zinc production (3.6 million tons of lead, 6.17 million tons of zinc) estimated that foreign lead-zinc reserves can also be exploited using lead for 40 years and zinc for 20 years. China’s lead reserves rank second in the world, second only to the United States; zinc reserves rank first in the world. China’s lead and zinc production and consumption are still low, and consumption is slightly larger than the output, but also a small amount of imports. According to the current production plan, China’s lead and zinc reserves can also be exploited for more than one hundred years, several years longer than the useful life of foreign countries