丰满熟妇乱子伦-在线精品无码字幕无码av-国产在线aaa片一区二区99-IGAO网站在线观看

粒度,粉體,粒度分布的區(qū)別?

來源:

作者:


顆粒的大小叫做顆粒的粒度。度量顆粒大小的單位一般用微米或納米,個別領(lǐng)域也用毫米。在粒度測試中通常用顆粒的直徑(粒徑)來描述顆粒的粒度。

The size of a particle is called the particle size. A unit of measurement of particle size, usually in microns or nanometers, and millimeters in individual areas. In particle size tests, the particle size (particle size) is usually used to describe the particle size.

 

由固體顆粒堆積而成的集合體叫粉體。固體顆粒是組成粉體的基本單元。

A collection of solid particles that is called powder. Solid particles constitute the basic unit of powder.

 

用特定方法測定的不同粒徑區(qū)間內(nèi)的顆粒占總量的百分數(shù)稱為粒度分布。粒度分布有多種基準,如數(shù)量分布、長度分布、面積分布、體積分布、重量分布等。激光法的基準是體積分布,沉降法的基準是重量分布,電阻法的基準是數(shù)量分布。

The percentage of particles in different size ranges determined by a specific method is called particle size distribution. There are many benchmarks for particle size distribution, such as quantity distribution, length distribution, area distribution, volume distribution, weight distribution and so on. The basis of the laser method is volume distribution. The basis of the sedimentation method is the weight distribution, and the basis of the resistance method is the quantity distribution.

 

不同基準的粒度分布數(shù)值不同,理論上不同基準的粒度分布可以通過數(shù)學方法轉(zhuǎn)換,但由于粉體形狀千差萬別,有時這種轉(zhuǎn)換的誤差較大。

The size distribution values of different benchmarks are different. In theory, the particle size distribution of the reference can be converted by mathematical method, but the error of the conversion is greater because of the different shapes of powders.

老师露出两个奶球让我吃奶头| 小妖精又紧又湿高潮h视频69| 苍井空一区二区波多野结衣av| 国产品无码一区二区三区在线| 玩两个丰满老熟女| 久久久www成人免费精品| 亚洲小说春色综合另类| 欧美人与禽zozzo性伦交| 国产精品国色综合久久| 性做久久久久久久久| 真人一进一出120秒试看| 欧美奶涨边摸边做爰视频| 亚洲成a人片在线观看中文| 少妇内射视频播放舔大片| 成人区人妻精品一熟女| 色一情一乱一伦一区二区三区日本| 在线观看国产精品av| 国产成人无码a区视频在线观看| 自慰小少妇毛又多又黑流白浆| 女人和拘做爰正片视频| 美丽人妻被按摩中出中文字幕| 国产精品久久久av久久久| 四虎永久在线精品免费播放| 亚洲精品无码久久久| 亚洲av永久无码精品一福利| 拍真实国产伦偷精品| 热久久美女精品天天吊色| 国产精品久久毛片av大全日韩| 亚洲乱码中文字幕综合| 老太脱裤子让老头玩xxxxx| 337p粉嫩大胆色噜噜噜| 色综合99久久久无码国产精品| 成人无码www免费视频| 小泽玛利亚一区二区在线观看| 草草网站影院白丝内射| 亚洲精品成人网站在线观看| 精品国产乱码久久久久久婷婷| 色婷婷欧美在线播放内射| 日韩国产丝袜人妻一二区| 久久人午夜亚洲精品无码区| 久久午夜神器|