Based on experiments, the diffusion mechanism and influential factor of selective uranium separation and acids recovery with ion exchange diffusion dialysis membranes are introduced.

通过初步试验，探讨了用离子交换扩散渗析膜有选择性地回收酸分离铀的机理及影响因素。

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These systems are a citric based solution with additional organic acids, strong reducing agents, and acid chelants.

这些系统是以柠檬酸为基础添加有机酸、强还原剂和酸螯合剂。

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Based on this, the selectivity and steric hindrance for the adsorption of bile acids are discussed.

对树脂吸附胆酸过程中的选择性和位阻作了讨论。

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Some of the more intriguing meteorites are partly composed of carbon-based materials, including amino acids and sugars.

WSJ: Russia Meteor Was Largest in More Than a Century

The research is based on the belief that deficiencies in fatty acids can cause serious learning difficulties which are more to do with a child's metabolism than his or her neurological condition.

BBC: tablets

Havran says the company's claim of skin-supporting is based on a "general body of knowledge" about the value of essential fatty acids for skin.

WSJ: An Oil's Promises, From Cooking to Cosmetics