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- hardness metal ions 硬度金属离子
- The emery is a hard metallic substance. 金刚砂是非常坚硬的金属物质。
- Having only one metal ion or positive radical. 只有一个金属离子或正基的
- A figure or design carved into or beneath the surface of hard metal or stone. 凹雕; 阴文刻在坚硬的金属或石头表面上的图形或图案
- Effective sequestering of metal ions, resulting in better water retention even though used in hard water processing. 对于金属离子有着良好的掩蔽作用,即使用硬水加工生产,也能产生较好的保水效果。
- To combine(a metal ion)with a chemical compound to form a ring. 把(一个金属离子)与化学复合物结合成环
- To combine(a metal ion) with a chemical compound to form a ring. 把(一个金属离子)与化学复合物结合成环
- Chelating agents can be used to remove toxic metal ions from soil or water. 螯合剂可以用来从土壤或水中清除有毒的金属离子。
- A kind of test paper suitable for fast determination of water hardness is pre-pared.It is based on the color一producing reaction of metal ions with an organic developerand an auxochromic agent. 基于金属离子与有机显色剂和助色剂的生色反应,本文研制了一种水质硬度快速测定试纸。
- The metal ion and the anion of the mineral acid form an insoluble salt. 金属离子和无机酸的阴离子生成一种难溶的盐。
- A figure or design carved beneath the surface of hard metal or stone. 是很常用的。我们去名胜古迹,看到那些凹刻在坚硬的金属或石头上的图形或图案,那些图形图案就叫做。
- Influence of Metal Ion Contents on Enzymatic Deinking Process ZHANG Su-feng g. 用量左右。关键词:酶脱墨;金属离子;螯合。
- When rare earth metal ion is used, the tetrazine is opened with unusually way. 而稀土与四嗪作用时发现四嗪环的异常开环。
- The synthesis conditions, chelant, metal ion and buffer were optimized. 确定了最佳的合成方法、螯合剂、金属离子和缓冲体系。
- It is non-oxidizing, provides the necessary solubility, will not chelate metal ions, and has relatively low toxicity. 它不仅溶解度好,而且还是非氧化性的物质,不会螯合金属离子,毒性也相对较低。
- Zhuzhou ZZ Hardmetal, which was established in the hometown of hard metal of China --- Zhuzhou city in Hunan province. 株洲硬质合金zz,其中设在家乡的硬质合金的中国---株洲市在湖南全省。
- Should be chosen in wood materials, fabric, plastic, glass furniture and discard friable hard metal furniture. 在材质上应该选择实木、布艺、塑料,摒弃易碎的玻璃家具和坚硬的金属家具。
- The article analyses the technology of treatment mineral acidic wastewater which contains the valuable metal ions. 分析了处理含重金属离子矿山酸性废水的处理工艺。
- Wu Yu was born in Jingdezhen porcelain are, "Yu" word in addition to the hard metal, there are treasures mean. 吴静钰出生在瓷都景德镇,而“钰”字除了坚硬的金属,还有珍宝的意思。
- The effectiveness of certain metal ions in breaking down these compounds was investigated by Fujiki. 腾木曾对某些金属离子在断裂这些化合物方面的有效性进行过研究。