查询词典 crystal

Multistep deposition process has been adopted in the preparation of superfine inorganic composite antibacterial powder, Ag~+ as crystal nucleus, packed outside by the hydroxid and phosphate precipitate of Ti and Zr elements etc., The optimal process conditions have been found from one-factor influence tests and multi-factor orthogonal test,and the optimal process conditions were: Ag iron was imported by silver ammine, and then 100ml Titanyl sulphate solution mixing with zirconium sulfate keep hot at 90 ℃ for 30 mins, and the Zr/Ti ratio is 0.15,and Na_2HPO_4 was added in the end.

超细无机复合抗菌粉体的制备采用以Ag~+沉淀物作为晶核，外包裹Ti、Zr等金属的氢氧化物沉淀和磷酸盐沉淀物的多步沉淀工艺，并利用单因素和正交试验法对制备工艺进行了优化，其最佳工艺条件是：Ag~+以银氨络合物引入，沉淀钛锆的反应时间为0.5h，反应温度为90℃，水解反应时体系总液量为100ml、Zr/Ti为0.15，沉淀物经水洗、干燥，于700℃煅烧4.0h；即得最终产品。

Through determining the heat of solution, it was found that in any Crystal modifications possesses less internal energy than the amorphism.

一稼定性加速试验的墓本原理和方法选定国产氨节含量在95%左右，根据药典要求含量下降到90%为不合格。

The results indicate that with the prolong of the grinding time, the crystal grain size incessantly small and the amorphism on the surface of the grain, the amorphous layer become thicker gradually, and they lead to the density declining.

在相同的研磨工况下，在有氮气气氛的情况下，物料更容易细化，而且总体上物料的细度要比在无氮气气氛下要细的多，更容易达到超细粉体，有些粉体的粒度甚至达到了纳米级。

Disodium 5'-guanylate heptahydrate (5'-GMPNa2) is an important food additive and medicine material, which belongs to the second-generation fresh reagents. 5'-GMPNa2 exists in two solid forms: amorphism and crystal.

5'-鸟苷酸二钠是一种重要的食品添加剂及医药用品，属于第二代鲜味剂。5'-鸟苷酸二钠以无定形体和晶体两种固体状态存在。

The main contents in this thesis go as follows.The polymorphic transition process of 5'-GMPNa2 from amorphism to crystal was investigated by in-situ monitoring technique and ex-situ monitoring technique. The transition mechanism was deduced to be solution mediated transition.

具体研究内容如下：利用聚焦光束反射测量仪、颗粒图像测量仪和X射线粉末衍射仪等测试手段对5'-鸟苷酸二钠由无定形体转化为晶体的过程进行了研究，推断出其过程机理为溶液过渡转化。

The results showed that the steel slag granule was diminished speedily and the crystal structure changed evidently to amorphism after mechanical finishing, so make the latent activation of steel slag to be activated.

采用机械力化学方法来激活钢渣，通过粒度测试、密度测定、XRD、HRTEM和DSC-TG等诸多现代测试手段进行表征分析发现：钢渣经过行星磨高能机械研磨之后其颗粒大小、晶体结构发生了明显变化，由晶形逐渐向无定形转变，使钢渣的潜在活性被激发出来。

So we studied on the DMY crystal purification method which is facile to industrialization produced from Ampelopsis grossedentata dry bud leaf.

并对其抗氧化机理、应用条件、稳定性及分子修饰进行了系统的研究。1。

In this thesis we investigate the beam propagation and amphoteric refraction in a Uniaxially anisotropic crystal.

本文在理论上研究了单轴晶体中的光束传输和正负折射现象。

The changes of amyloplast and amyloplast DNA in different development stages were also observed, indicating the relationship among the amyloplast core, crystal structure and the amyloplast DNA.

近十余年来对淀粉体DNA的研究也有些工作〔3一"'，我们在几种植物贮藏组织淀粉体DNA的研究中〔"川，观察到淀粉体DNA在不同的材料中具有分布形态的多样性，淀粉

A: Because the current liquid crystal displays use analog input, so the card can be used in general, no special restrictions.

答：由于目前的液晶显示器都采用类比输入，所以一般的显卡都能用，没有特别限制。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。