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。
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。
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;
The viscosity reducing rate will reach over 99% or more when augmenting light oil mass of water-free heavy oil well, lower temperature will lead to better performance of viscosity decrease.
不含水稠油井的降粘率随掺稀质量的提高而增大,其值可达99%以上,温度越低降粘效果越好。
The zinc-rich Thousand-year-egg is made with a new lead-free formula, that is the zinc compound and toon instead of lead oxide, water soluble alkaline fibrous membrane instead of mud wrap.
富锌松花皮蛋是采用新型配方,利用锌的化合物和香椿组合取代氧化铅,实行无铅加工。同时采用水溶性碱性纤维膜取代黄泥包裹。
The zinc-rich Thousand-year-egg is made with a new lead-free formula, that is the zinc compound and toon instead of lead oxide, water soluble alkaline fibrous membrane instead of mud wrap.
富锌松花皮蛋是采用新型配方,利用锌的化合物和香椿组合取代氧化铅,实行无铅加工。同时采用水溶性碱性纤维膜取代黄泥包裹。
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