杂质

The results show that the decomposition rate of ammonium jarosite can reach 98.03% under the following optimum conditions, which are m m=0.381 41, temperature 60 ℃, liquid-solid ratio 21, reaction time 2 h. During the alkaline decomposition, the impurity elements, such as Zn, In, Cu, Cd, Pb, Sb, Sn and Ag are left in the residue, while As is leached into the pregnant solution as AsO43 with leaching rate of 83.36%.

结果表明：在 m m=0.381 41、温度60 ℃、液固比21、反应时间2 h的最优条件下，铁矾渣的分解率达到98.03%，而原料中的杂质金属，如Sn、Sb、Zn、In、Cu、Cd、Pb和Ag等绝大部分留在分解渣中，As则以AsO43的形态大部分进入溶液，浸出率达到83.36%。

Comparing with montmorillonite, the layer structure of kaolinite is more perfect, less impurity.

与蒙脱石相比，晶格中杂质更少，具有更好的结构稳定性。

So how to purity MAP is becoming key technology.

因此，如何有效除去肥料级磷铵料浆中的水不溶化合物杂质就成为工业级磷铵提纯生产的关键技术。

The labile nature of some impurities precludes this possibility.

有些杂质的不稳定特性排除了这种可能性。

Labradorite which is a plagioclase feldspar of the triclinic class is well known for the striking iridescence which it exhibits. What is the material which is responsible for the iridescence of labradorite and why is it present?

上世纪七、八十年代，拉长石的晕彩成因引起了人们的广泛关注，普遍认为拉长石的晕彩色并非因其晶体内部的杂质或包裹体所致，更可能是因拉长石内部的周期性层状结构对光的干涉作用所致。

Using mixed ion exchange resin patent technology, not only can purify water hardness (calcium, magnesium, iron, also can remove plasma) generally unable to get rid of hard softening equipment, such as impurity and peculiar smell chlorine, lead, nitrate, sulfate, organic or pesticides.

采用了混合离子交换树脂专利技术，不仅能够去除水中的硬度，还能够去除一般硬水软化设备无法去除的杂质和异味，如氯、铅、硝酸盐、硫酸盐、有机物或杀虫剂等等。

Effect of different refractories on impurities in automobile leaf spring steel in steel smelting was investigated.

研究不同耐火材料在熔炼汽车用钢时对钢水中杂质的影响。

Results: Under the experimental conditions adopted, the baseline separation of ephedrin and ephedrine levorotatory was obtained.

结果：麻黄碱及伪麻黄碱对映体得到良好分离，并满足进行左旋麻黄碱中对映异构体杂质检查所需要的条件。

While the size of the inclusions is a constant, the LIEF will increase if the dielectric constant increased.

尺寸一定的杂质，其引起的场强增强也随介电常数的增大而逐渐增大。

Objective: To forge top-quality, lily-white, spotless alumina for the sake of clinical requirement.

目的：煅制质优、纯白无杂质的枯矾，适应临床需要。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。