Thie paper describes the abrasive trimming, pulse voltage trimming and laser trimming technologies for thick film and their evolutions.
介绍了厚膜电阻常用的喷砂微调和脉冲电压微调、激光微调三种微调技术及其发展趋势,重点介绍了激光微调机理、调阻方式以及微调图形分类。
sandy algal biosparite
砂质藻屑生物亮晶灰岩
sandy algal biomicrite
砂质藻屑生物微晶灰岩
sandy intrasparite
砂质内碎屑亮晶灰岩
sandy intramicrite
砂质内碎屑微晶灰岩
Sandy soils along the coast have relatively large spaces between the sand grains.
沿海地区的砂质土壤，砂粒间的空隙也相对较大。
Thin layers of sandy shale, and carbonaceous fragments are locally present.
局部出现砂质页岩薄层和碳质碎屑。
This sandstone unit is commonly thick-bedded and massive, with silty and carbonaceous laminations.
该砂层单元通常为厚层或块状，具粉砂质和碳质纹层。
Technical requirements and test methods of sand for ordinary concrete
普通混凝土用砂质量标准及检验方法
This lagoon "divider" consist of sand.
泻湖这个“分水岭”是由砂质物构成的。
There is sufficient sand available to blanket the unconformity.
这里有充足的砂质物铺盖不整合面。
lithic arkosic wacke
岩屑长石砂岩质杂砂岩
lithic subarkosic wacke
岩屑亚长石砂岩质杂砂岩
Centre for Heavy Crude and Tar Sands
重质原油和沥青砂中心
having the abrasive texture of sandpaper.
有砂纸的研磨质地的。
subfeldspathic lithic arenite
亚长石质岩屑砂屑岩
The channel is filled with noncompactible sand, or with sand and gravel.
水道内由不可压实的砂或砂砾物质充填。
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
