With good performances of powdered carborundum a cted as active admixture in concrete in this paper its wide application in concr ete is introduced, which not only resolvedenvironmental pollution caused carboru ndum dust but also acquired good social benefits.
结合金刚砂灰粉混凝土活性掺合料具有的良好特性 ,介绍了其在混凝土中的应用 ,指出这种掺合料从根本上治理了金刚砂炉尘引起的环境污染 ,具有较好的社会效
cloth covered with powdered emery.
覆有金刚砂粉末的布。
stiff paper coated with powdered emery or sand.
覆有金刚砂粉末或沙的硬纸。
A fine - grained impure corundum used for grinding and polishing.
刚玉粉，金刚砂用于磨粉和打光的一种细磨的不纯的刚玉粉
Research and Contrast Experiment on Dressing Dish Diamond Grinding Wheel with Diamond Powder Sintered Bar and Cup Wheel
金刚石微粉烧结棒与杯形砂轮修整碟形金刚石砂轮的对比试验研究
"Clay, silt, sand, and gravel. "
粘土，粉砂，砂土和砾石。
blue corundum resin cutting grinding wheel
青刚玉树脂切割砂轮
emery-coated beam
金刚砂卷布辊，金刚导布辊
Applicable sand material: Aluminum oxide Sand of ＃26-＃320, carborundum, glass beads, Plastic sand blasting grains.
适用砂材：＃26-＃320氧化铝砂、金刚砂、玻璃珠、塑胶喷砂粒等。
②the composition of grade are sand 44.75%,silt 31% and clay soil 24.25%;
②粒级构成:砂44.75%,粉砂31%,黏土24.25%;
(2) The composition of grade is as follows: sand 44.75%, silt 31%, and clay soil 24.25%.
(2)粒级构成为：砂44.75％，粉砂31％，黏土24.25％；
Mechanism of seacoal in greensand and development history of placement addition of seacoal
煤粉防粘砂机理及煤粉代用品的发展
Exhibit: Sand belt, sand paper and abrasive product, diamond sand wheel, Pitch cutting, Black lead cloth, etc.
展品：砂带、纸及及其异型产品，石墨布、脂、瓷砂轮、脂切割片、刚石砂轮等。
The sand is separated from the silt and clay by wave sorting.
砂粒在波浪分选作用下从粉砂及粘土中分出。
some thin beds of layered sandstone and dark grey siltstone show slump structures.
一些薄层砂岩和暗灰色粉砂岩显示出滑动构造。
Flume Experiments on the Development of Bed Forms for Some Fine Sand and Silt
某些细砂和粉砂底形发育的水槽实验研究
The Realesearch of Argillaceous Siltstone Improving Exploitment for Thin Narrow Sand Body Oil Field
泥质粉砂岩对改善窄薄砂体油田开发作用研究
These particles range from coarse silt to sand or pebble size.
这些颗粒的大小变化范围是从粗粉砂级到砂级或细砂级。
These may range from coarse silt to sand or peble size.
这些颗粒的大小变化范围，从粗粉砂级到砂级或细砂级。