| 1. | Many years ago men first heated iron ore in a fire .
许多年前，人们初次在火中锻烧矿石。 |
| 2. | The hydrocarbon content of this phosphate ore provides most of the heat needed for the calcination .
这磷矿所含烃量能提供锻烧所需的大部分热量。 |
| 3. | Alumina calcination plant
氧化铝锻烧车间 |
| 4. | Blende roasting furnace
闪锌矿锻烧炉 |
| 5. | Conditions of calcination
锻烧条件 |
| 6. | Indirect methods of determining the frost resistance of roofing tiles ; determination of drying shrinkage and firing shrinkage
房顶瓦抗冻性能直接测定法.测定干燥收缩率和锻烧收缩 |
| 7. | The design of nanostructure and processing of ti - pillared montmorillonites was been described in this paper
摘要将聚羟基钛离子插入粘土矿物层间，羟锻烧形成纳米二氧化钛柱撑的粘土材料。 |
| 8. | The final stage in the production of dead burned dolomite requires that the " green briquettes " produced in the briquetting area be treated by application of very high temperatures for a period of time
在锻烧白云石产品的最后工序里，要求对在块状区域产生的“绿色煤球”进行一段时间的高温热处理。 |
| 9. | The intrinsic chemical reaction rate constant was insensitive to the precursor and the calcinations history of cao , but the product layer diffusivity was affected by these two factors in the initial stage and decreased to a constant value with increasing conversion of cao
化学反应速率常数不受氧化钙的先驱物与其锻烧程序所影响，但产物层扩散系数在初始阶段则受到上述两因素的影响，并随著氧化钙的转化而减少至一定值。 |
| 10. | The results show that : the fillers of sio2 based investment consist of sio2 , al2o3 and mgo , and the binder is nh4h2po4 for sio2 based investment , the bulk density and the compression strength decrease , the apparent porosity and the thermal expansion increase , when the specimens are heated to 900 ; the fillers of al2o3 based investment consist of al2o3 and mgo , and the binder is nh4h2po4 ; for al2o3 based investment , the bulk density decreases and the apparent porosity increases when the specimens are heated to 900 ; the fillers of mgo based investment consist of mgo and al2o3 , and the binder is ca cement ; for mgo based investment , the compression strength decreases and the thermal expansion increases greatly when the specimens are heated to 900
结果表明：氧化硅系包埋料的骨料是氧化硅、氧化铝、氧化镁，结合剂为磷酸二氢铵，其900锻烧后显气孔率增加，体积密度下降，耐压强度降低，热膨胀增大；氧化铝系包埋料的骨料是氧化铝和氧化镁，结合剂为磷酸二氢铵，其900烧后显气孔率增加，体积密度下降，热膨胀变化不大；氧化镁系包埋料的骨料是氧化镁和氧化铝，结合剂是铝酸钙水泥，其900烧后耐压强度明显降低，热膨胀明显增大。 |
