粒度范围

而对该粒度范围内粗煤泥的分选，是现有选煤工艺的薄弱环节。

However , the separation of coarse slime in this size range is the weak point of coal preparation technology .

研究表明，-150～+250目团聚粉喷涂所得涂层综合性能良好，为适合Al+CuO体系反应喷涂的粒度范围。

It was showed that the coatings sprayed using the - 150 ~ + 250 agglomerate , which was the suitable size range for Al + CuO reactive system , had the good comprehensive properties .

给出了制备Ni（OH）2的粒度范围、形貌、堆积密度等主要性能指标。

Granularity scope , morphology and tapped density of Ni ( OH ) 2 prepared are given .

在本实验范围内，选择0.5°/min的扫描速度和38.5～30μn粒度范围较为适宜。

For this experiment , the scan speed of 0 . 5 ° / min and the granularity of 38 . 5-30 μ m are appropriate .

在一定的粒度范围内，延期药随着B粒度变小，延期药的延期精度较好，压碎强度提高；

Some useful conclusions are as follows : ( 1 ) Within the certain granularity range , when the granularity of the boron is small , the delay precision of the delay composition is good , the crushability intensity become improved ;

由该关系曲线推知，具有较佳催化活性的粒度范围为40～50nm。

It presents that the particle size of higher active colloidal copper is 40 ~ 50nm .

拌酸熟化工艺的优化参数：原矿粒度范围-0.125+0.1mm，固液比1：1，熟化时间1h。

The mixed acid curing process parameters were optimizated : - 0.125 + 0.1 mm ore particle size , solid-liquid ratio of 1:1 , curing time 1h . A manganese concentrate was obtain by the check experiment .

LL-9型离心脱水机存在处理能力低、入料粒度范围小等问题，主要原因是由于刮刀与筛篮设计不合理、过煤面积小造成的。

LL-9 type centrifugal has limitations such as low disposal , small granularity range and so on . The main cause is that its scraper and basket are not designed logically and its area of coal crossing is small .

最佳粒度范围是在250~320目之间；

Optimum grain size is 250-320 mesh .

主要研究结论如下：1.景观格局指数的适宜粒度范围由第一尺度域的大小确定。

The appropriate range of grain size in the landscape pattern index is determined by the size of first scale domain .

水淬高炉渣微粉整体粒径分布均匀，不同粒度范围内微粉特性差异较小。

As for W-BF slag , its particle size distribution is regular , and the difference of characteristics between different particle size ranges is also small .

而转炉渣中存在明显的难磨相，不同粒度范围内的分形分维数有明显差异。

However , tough phases are presented in the BOF slag , and the powder 's fractal dimensions between different particle size ranges have obvious differences .

而且，由于粗粒易脱落，而微细颗粒则不易脱落，导致以往浮选柱的选择性差，应用的粒度范围小。

And , coarse off easy but fine not easy shedding , conduce the poor selectivity of flotation column at past , and the small particle size application .

结果还表明，对泾河流域1∶10万比例尺下的景观类型图进行景观指数计算的适宜粒度范围为30m~40m。

The results also show that based on landscape map at 1 ∶( 100 000 ) scales , the range of appropriate grain for landscape index of Jinghe Watershed was 30m to 40m .

由于矿浆流态处于层流状态，加上洗涤水流和振动锥面对颗粒的作用，使得设备在分选一定粒度范围的细粒级物料时，严格的按照矿物的密度对物料进行分选。

As the slurry flow in a laminar flow state , together with wash water and the role of vibration cone , making the equipment strict accordance with the mineral density to separation .

综合比较当前细粒煤分选技术，流化床分选以其独特优点被广泛采用，但却存在分选粒度范围窄、可控可调参数少等缺陷。

By comprehensive comparison of various fine coal separation technology , Fluidized bed separation was widely used for its unique advantages , But there were less controllable parameters , narrow grained separation etc , defects .

缺乏对这一粒度范围高分选精度的设备严重制约了选煤工艺的发展，逐渐成为选煤厂保证产品质量、提高经济效益的瓶颈问题。

Lack of separation equipments with high accuracy seriously harmed the development of coal preparation technology and it has become the bottleneck problem of ensuring product quality and improving economic benefit in coal preparation plant .

与磁选柱相比较，给矿粒度范围可拓宽到0.7~0mm，耗水量降低40%左右，经济技术指标良好。

Compared with column magnetic separator , it can extend the feed size range to 0.7 ~ 0 mm and reduce the water consumption by 40 % , leading to both good technical and economical performances .

本文从小麦结构，小麦粉各组成部份粒度范围的蛋白质含量及吸风粉产生的过程论述了吸风粉含面筋高的原因。

This article discusses the cause of high gluten content in wheat wind suction flour by analysing wheat structure , the protein content in various sizes of parts of wheat flour and the producing process of wheat wind suction flour .

结果表明，使用50～100μm和50～150μm粒度范围的粉末是降低成本、简化工序、保证产品质量的最佳选择。

The results indicated that the optimum selection would be to use powder with particle sizes of 50-100 μ m or 50-150 μ m , which can reduce production costs , simplify processing and guarantee P / M product quality .

为了使沉淀SiO2达到消光的效果，需要控制其平均粒径及其粒度分布范围。

For the sake of precipitate silica matting agent has extinction effect , average particle diameter and particle size range need be confirmed .

对于Nd（15）Fe（78）B7+Ga系永磁体，当Ga的添加量为1.0wt%时，得到颗粒粒度分布范围窄，颗粒分布较均匀的显微结构；

The other was that the grains size distribution of grains was narrow and grain distributed homogeneously as to microstructure of magnets when the amount of doped-Ga was 1 . Owt % ;

提高分级精度，增加产量，缩小产品的粒度分布范围是CP系列超声速超微气流粉碎分级机一直以来面临的问题。

For a long time , CP series of supersonic superfine air flow milling and grading machinery have faced up to such problems as improve high grading precision , increase output and reduce range of particle distribute .

采用XRD，TEM，TG-DTA等测试手段对样品进行表征，实验所制得的α-Fe2O3纳米粒子晶型为球形，平均粒径为50nm，粒度分布范围较窄且单分散性好。

The sample obtained is characterized by XRD , TEM and TG-DTA , and the particle is spherical crystal with average diameter of 50 nm , it has narrow size distribution and well dispersity .

通过液相法制备添加剂超细复合粉体，制备的ZnO压敏电阻内部结构稳定，气孔率低，粒度分布范围集中，添加剂元素分布均匀，使得ZnO压敏电阻器各方面性能都得到了提高。

Liquid preparation of the composite ultra-fine powder additive is used to prepare those ZnO varistors which have stabler internal structure , lower porosity rate , and narrower range particle size distribution . These additives elements also present more uniform distribution . It makes the ZnO varistors present better performance .

而乙酸乙酯的第二次加入量较大程度上决定着最后产品的包覆效果和产品的粒度分布范围。

Furthermore , secondary addition of ethyl acetate is the most important factor to affect the packing quality and particle size of the product .

现代社会的快速进步以及科技的飞速发展迫切需要粒度分布范围窄、甚至粒度单一的超细粉体。

The rapid progress of modern society and the development of science and technology urgently need narrow particle size distribution , or even a single particle size powders .

应用三次样条插值法进行微机编程，所得程序适用于很宽的粒度测定范围并获得较高的计算精度。

Using cubic spline interpolation for microcomputer programming in its data handling , and thus obtain a program applicable for a wide range of granulometry with a higher computational accuracy .

粉质土不同于粘性土和砂性土，其粒度分布范围窄，所以适用于粘性土与砂性土的配合比及施工技术与方法并不就一定适用于粉质土。

Different from clay soil and sand soil , the particle extent of silty soil is more narrow , so the component design method and construction technology , which is reasonable for clay soil and sand soil may not be effective to silty soil .

在纳米复合氧化高银杀菌粉体的制备中，分散剂是控制微粒粒度处于纳米范围最关键的因素之一。

Dispersing agent is one of the most important factors , which can control particles ' size and prepare the multiplex nanometer silver (ⅰ,ⅱ) oxide .