However, chemical structure of organic arsenic in coal is still unclear currently.
当前还难以确认有机态砷的化学结构。
Organic arsenic, hence the name, is naturally occurring in the environment and can be found in many foods.
有机砷，由名字即可得知，它天然存在于环境当中，而且许多食物都含有有机砷。
In a statement released yesterday, the organization said that while there are some levels of arsenic in apple juice, it's important to distinguish the difference between organic and inorganic arsenic.
在昨天公布的声明中，FDA表明尽管苹果汁中含有一些砷，但重要的是要把有机砷和无机砷区分开来。
These aquifers were created during the Pleistocene epoch, between 12,000 and 2.5 million years ago, and lack the organic carbon that is needed for arsenic to leach into water.
这些蓄水层是在更新世形成的，它们形成于12000至250万年之前，并且缺少能够使砷渗入水中的有机碳。
These aquifers were created during the Pleistocene epoch, between 12, 000 and 2.5 million years ago, and lack the organic carbon that is needed for arsenic to leach into water.
这些蓄水层是在更新世形成的，它们形成于12000至250万年之前，并且缺少能够使砷渗入水中的有机碳。
In addition to the main content of phosphorus, yellow phosphorus products also contain other impurities, such as organic impurities, arsenic, lead, sulfur and so on.
黄磷产品中除了主含量磷以外，还含有其他杂质，如：有机杂质、砷、铅、硫等。
Arsenic has a close relation with thallium in thallium-bearing mineral, and sulfur, especially organic sulfur, is an important factor.
铊矿物中铊与砷密切共生，而硫是联系二者的重要桥梁。
Arsenic has a close relation with thallium in thallium-bearing mineral, and sulfur, especially organic sulfur, is an important factor.
铊矿物中铊与砷密切共生，而硫是联系二者的重要桥梁。
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