The applying status quo and problem of silica sands and chromite sands are systematic studied in this paper,and the environmental friendship stuffing sands, olivine sands,are studied and developed,the free opening ratio of olivine sands mixed with the right amount of magnesia,bauxite,k-feldspar,graphite and carbon is up to more than 98%.
本文系统研究了硅质、铬质引流剂的使用现状及存在的问题,研究开发了环保型镁橄榄石质引流剂,以镁橄榄石为主,添加一定量的镁砂、铝矾土、钾长石、石墨以及炭黑的镁橄榄石质引流剂自开率达98%以上。
sponges with 6-rayed siliceous spicules; choanocytes are restricted to finger-shaped chambers.
包含有六道边花硅质骨针的海绵；环细胞限于指状室中。
The Classification and Evolvement of Siliceous Spicules and the Cause of the Extinction during the End-Permian
华南二叠纪末硅质海绵骨针分类、演化及灭绝原因
The bone matrix, especially before calcification.
类骨质骨基质，尤指钙化以前的骨基质
136 CASES OF SKULL DEFECT REPAIRED WITH SILASTIC DACRON SKULL MODEL
硅橡胶涤纶网颅骨成形片修补颅骨缺损136例
Premium silicone nipple (3 pack)
优质硅胶奶嘴（3入装）
portland-pozzolana cement
火山灰质硅酸盐水泥
hard borosilicate glass
硬质硼硅玻璃，耐热玻璃
refractory block (excl. of siliceous fossil meals or similar siliceous earths)
耐火砌块（不包括硅质化石粗粉或类似硅质土）
ceramic heat-insulating brick of siliceous fossil meals or similar siliceous earths
隔热的硅质化石粗粉或类似硅质土制隔热瓷砖
Bone occurs in two typical forms, spongy and compact.
骨有两种类型，即松质骨与坚质骨。
Zeolites are made up mainly of a framework of silicon, oxygen, and aluminum.
沸石的骨架主要由硅、氧和铝原子构成。
teoporosis circumscripta cranii
颅骨局限性骨质疏松
" Portland blastfurnace-slag cement, portland pozzolana cement and portland fly-ash cement"
GB1344-1992矿渣硅酸盐水泥、火山灰质硅酸盐水泥及粉煤灰硅酸盐水泥
Discussing of factors to affect the hydro thermal composite microporous calcium silicate in utilizing siliceous clay as raw miterials
硅质粘土水热合成微孔硅酸钙的影响因素探讨
A STUDY ON SILICON AND OXYGEN ISOTOPIC GEOCHEMISTRY OF THE DEVONIAN SILICA ROCK IN QINLING RANGE
秦岭泥盆纪硅质岩硅、氧同位素地球化学研究
Analysis on the Siliceous Refractory Stone of Pyrex-Brand Glass
高硼硅耐热玻璃器皿硅质耐火材料结石分析
Research on Adding Si at Low Temperature and Modification of Al-Si Alloy;
铝硅合金低温加硅技术的研究及变质处理
Research of Nc-Si/c-Si Heterojunction MOSFETs Pressure-magnetic Mutli-sensor;
纳米硅/单晶硅异质结MOSFETs压/磁多功能传感器研究