Point to the serious burn-on defect occurred on the nonmagnetic steel casting surface, a new casting technique was used in which mould-making adopted CO2-cured sodium silicate bonded limestone sand and special sand powder coating.
针对无磁钢铸件严重粘砂的缺陷,采用石灰石砂及特种砂粉涂料相结合的铸造工艺措施,经过大量试验和生产验证,满足了铸造生产的要求,使铸件表面光洁、易清砂,取得了明显的技术经济效果。
Discussion on application of lime-sand pile in strengthening collapsible loess foundation
石灰砂桩加固湿陷性黄土地基机理探讨
Application of Lime-sand Pile in Treating Acidic Groundwater and Improving Foundation;
石灰砂桩在治理地下酸性水及地基加固中的应用
Performance on the addition of lime to coal gangue cement mortar
石灰对煤矸石水泥砂浆性能影响研究
sedimentary rocks,eg sandstone,limestone,slate
沉积岩（如砂岩、石灰岩、板岩）.
04210-clay unit masonry
砖（粘土砖；煤矸石砖；灰砂砖； 空心砖等）
Study on micro-structural, mechanical, shrinkage properties of mortar with limestone powder
石灰石粉对砂浆微观结构和力学性能的影响
The Influence of Granularity of Limestone on the Quality of Sintering Bricks of Purple Sandy Shale
石灰石细度对紫色砂页岩烧结砖质量的影响
Influence of Limestone Powder and Fly Ash on the Properties of Mortar under Dry Condition
石灰石粉和粉煤灰对干燥状态下砂浆性能的影响
A bluish - gray sandstone used for paving and building.
青石，蓝砂岩一种蓝灰色的沙岩，用于砌路或建筑
The most significant fields are tobacco, paper, wolfram, camphor, farm implements and fertilizers (such as lime).
这里重要的是烟、纸、钨砂、樟脑、农具和肥料（石灰等）。
The channel is overlain by siltstone and lenticular beds of limestone.
河道上面覆盖着粉砂岩和石灰岩透晶体。
Preparation of Calcium Metaborate and Sodium Perborate from Borax and Slaked Lime
由硼砂和消石灰制备偏硼酸钙和过硼酸钠
Study on Composite Cementitious Material Produced by Desulphurization Gypsum-Fly Ash
脱硫石膏-粉煤灰复合胶凝材料基胶砂试验研究
EXPERIMENTAL RESEARCH ON MECHANICAL PROPERTIES OF LIMESTONE AND SANDSTONE UNDER HIGH TEMPERATURE
石灰岩和砂岩高温力学特性的试验研究
Experimental Research on Mortar Made by Desulphurize Ash and Dregs
利用石油焦脱硫灰渣制作砂浆的试验研究
Preparation of Hydroxyapatite(HAp)-Shell Sand De? uorinating Agent by Process of Metasomatic Crystallization
交代结晶法制备羟基磷灰石/贝壳砂除氟剂
Abstract: The effects of added limestone contents in portland limestone cement and fineness of cement grinding on strength of the cement mortar were investigated.
文摘:研究了石灰石硅酸盐水泥中石灰石掺入量及水泥细度对水泥胶砂强度的影响。
