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- 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。
- The metal ion may be the catalytic center of the cofactor, or it may serve to bind the enzyme and substrate together to hold the enzyme in a catalytically active conformation. 金属离子可以是辅助因素的催化中心,也可以帮助形成酶活性所必须的构象。
- Experimental results show that the Pd-Ag particle size is decreased with increasing the metal ion concentration, HCHO/metal ratio, and PVP/metal ratio. 实验结果显示,金属前驱盐、还原剂及PVP保护剂之浓度增加时,所得之微粉粒径会有降低之趋势。
- According to Sanderson [84] the electronegativity of the metal ion would be expected to change linearly with its charge. 电负性越大,获取电子的能量越强。按照赛德森,金属离子的电负性与其电荷成线性关系。
- In complex formation, the metal ion is usually titrated with the standardized EDTA Solution in order to determine the metal content of sample. Therefore, it is widespreadly applied in practice. 在配位滴定中,常用标准的EDTA溶液滴定金属离子,达到测定试样中金属含量的目的,因而在实际中有广泛的应用。
- She knows why the metal is the good conductor. 她知道金属为什么是好的导体。
- The extraction method of morning glory flower pigment as well as the influence of temperature and acidity alkalinity,and the metal ion on the stability of morning glory flower pigment were presented. 介绍了牵牛花色素的超声提取法以及温度、酸碱度和金属离子对牵牛花色素稳定性的影响。
- The metal basin clattered down the stone stairs. 金属盆子沿着石阶滚了下去,发出咣啷声。
- Salts of strongly electropositive metals have little tendency to hydrolyze and form oxysalts.Since the size of the metal ion is large it has little tendency to form complexes. 强电正性的金属盐几乎没有水解、形成含氧盐的趋势,因为金属离子的半径很大,几乎不倾向于生成配合物。
- The metal frame tends to twist under pressure. 这种金属框受压後容易变形。
- Being heated, the metal is rapidly melting. 由于受热,金属在迅速熔化。
- The metal has corroded (away) because of rust. 该金属已锈蚀。
- The metal is fretted with the acid. 金属被酸腐蚀。
- The metal buckled in the great heat. 这金属在高温下变形了。
- The metal was submitted to analysis. 对该金属进行了分析。
- Beer stali ng was also influenced by the metal ions that act as the catalyst for staling re action. 金属离子的存在能催化自由基反应,金属离子清除剂对啤酒老化也有一定作用。
- He hammered out the dents in the metal sheet. 他把金属板上的一些凹痕敲掉或敲平了。
- Therefore, this solution was chosen as an eluent for the metal ions from sulfur adsorbent. 因此,这种溶液被选择作为从硫吸收剂上得到金属离子的洗脱剂。
- A new criterion to decide whether the carboxy group coordinating to the metallic ion in mono or bi dentate-fashion in an ambiguous situation, base on coordination bond distances and angles. 在很多情况下,一个羧基与中心金属离子是单齿配位还是螯合配位是不明确的。 通过上述晶体结构中配位键长键角的分析,得到了一个行之有效的标准,判断羧基与中心金属离子是单齿配位还是螯合配位。
- The metal in the mould hardened into shape. 模子里的金属硬化成形。