By studying bacteria that flourish in the oxygen-free water, scientists hope, among other things, to learn how simple life-forms can lead to more complex ones.

通过研究这些生活在无氧环境下细菌，科研人员希望了解这些简单的生物是如何进化成更为复杂的生物的。

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It is shown that conventional emulsion polymerization process leads to high gloss film and soap-free or micro-soap processes will lead to good water resistance and lower foaming.

研究表明采用常规乳液聚合涂膜的光泽较高，而采用无皂和微皂乳液聚合涂膜的耐水性较好，涂料的起泡性较低。

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Shenzhen Yu-feng of solder Co. , Ltd. is a professional production and sale of flux Series: Disposable flux, Rosin flux, water-soluble flux, lead-free flux;

深圳市宇锋达焊料有限公司是一家专业生产、销售助焊剂系列：免洗助焊剂、松香型助焊剂、水溶性助焊剂、无铅助焊剂；

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