查询词典 zinc

We also have done some work about it. In this dissertation, the first, the common fluorescence spectrophotometer is used to study the ion-associated systems of cadmium-phenanthorline-bromophenol blue system and zinc-thiocyanate- crystal violet system.

同时由于目前共振光散射技术在基础理论方面尚不很完善，还需做大量的实验研究和理论探索工作，本文也在共振光散射技术理论方面进行了初步探讨。

The color reaction of Zn(superscript 2+)-SCN(superscript -)-crystal violet in the presence of β-cyclodextrin and arabic gum has been studied and a new spectrophotometric method has been developed for the determination of zinc in water.

研究了在β-环糊精和阿拉伯树胶存在下，锌与硫氰酸盐和结晶紫的显色反应，建立了光度法测定水中微量锌的新方法。

It is shown that ZnS nanoparticles is of cubic system, zinc-blende structure.

ZnS纳米微粒具有立方面心结构，为闪锌矿型ZnS。

Therefore the governance of pollution has become widely problem which attracting people's attention. In Agriculture, Cupper and zinc are required microelements of plant.

在农业生产过程中，铜和锌既是植物生长发育所必需的微量元素，同时过量的铜和锌也将对作物产生严重的危害，并由此引发一系列食品安全问题。

The results indicated that the content of lead and cadmium in all surveyed vegetables exceeds the limits of their standards out and away, the content of zinc only in root vegetable, shallot vegetable and leaf vegetables exceeds the limit of it standard a little, and the content of cupper in vegetables is under limit of it standard.

就一铅锌冶炼厂周边蔬菜对重金属的吸收与富集进行了研究，结果表明：所有被检测蔬菜中Pb和Cd含量严重超标；根类、葱类和叶菜类蔬菜中Zn含量有所超标，其它种类蔬菜一般未超标；蔬菜中的Cu含量未超标。

Erythrocytes of sika deer blood ; cupper and zinc superoxide dismutase ; purification ; property

鹿血红细胞；铜锌超氧化物歧化酶；纯化；性质

Relevant keyword: Information of stannum of zinc of cupreous aluminous lead complains reach cooperative hot line:

相关关键词：铜铝铅锌锡信息投诉及合作热线：

Relevant keyword: Stannum of zinc of cupreous aluminous lead Information complains reach cooperative hot line:

相关关键词：铜铝铅锌锡信息投诉及合作热线：

In the simulation, the flow rule of melt metal in mold of horizontal continuous casting with electromagnetic stirring is measured using ultrasonic Doppler velometer, and the result is inter confirmed with the solidification characteristics is tics of zinc cupronickel thin slab in industrial product, some advantageous results are obtained that, when the current is 400 A the inner micro-pores disappear, when the current is 500 A the center equiaxed crystal layers occur and when the current is to 800 A the inner-segregation decreases to zero.

在模拟实验中，用超声波多普勒测速仪测量该电磁搅拌下水平连铸结晶器内金属液的流动规律，并与生产实验中锌白铜板带的凝固特征相互印证，发现搅拌电流达到400 A时，板带内部气孔消失，电流达到500 A时板带出现等轴晶带，电流达到800 A时板带坯偏析率趋于零。

The electroplating waste water contains many heavy metals such as chromium,cadmium,nickel,cuprum,zinc.So the direct emission of it will lead to produce great negative effect for ecosystem,human health,industry production and living.

电镀废水中含有的重金属离子如铬、镉、镍、铜、锌等，直接排放将恶化生态系统，给人类的健康和生产生活造成极大的负面影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。