文中将河东煤田中部石炭系灰岩中的钙球划分为七种类型。
The Calcisphere in carboniferous series in middle part of HerdongCoal Basin is classified into seven types in the paper.
利用锂钙硼玻璃在磷酸盐溶液中的原位转化反应制备表面多孔的中空羟基磷灰石(HAP)微球。
Hollow hydroxyapatite (HAP) microspheres with pores on their surfaces were prepared by in situ conversion reaction of Li-Ca-B glass in phosphate solution.
氮肥和钾肥提高结球甘蓝养分元素的吸收数量，促进边叶钙和镁向叶球转移。
Nitrogen and potassium fertilizer enhanced the nutrient uptakes, and the translocation of ca and Mg from side leaves to heads.
由粉石英制备的硬硅钙石二次粒子球具有中空结构，而白炭黑对应样品则以纤维聚集成的块体为主，成球差。
The secondary particle sphere of xonotlite yielded by konilite is of hollow structure, however, for the carbon white fibrous crystal just stacked densely and balling up is poor.
射线衍射、扫描电镜分析表明，水溶性P2O5存在降低了碳酸钙晶型由球霞石向方解石转变的速率，并使碳酸钙晶体晶习变坏。
The results obtained from XRD and SEM indicate that water-soluble P2O5 in gypsum reduces the rate of transformation from vaterite to calcite and makes crystalline grains smaller and irregular.
然而，半中空球对进一步深入研究超细直径硬硅钙石纤维的性能与应用造成很大的局限。
However, hollow structure is harm to the study on the properties and applications of ultrafine xonotlite fibers.
结果表明，钠基膨润土能使生球落下强度、抗压强度显著提高；而钙基膨润土在改善球团爆裂温度方面优于钠基膨润土。
The results show that sodium bentonite can greatly improve the drop strength and compressive strength of green pellets, while calcium bentonite could enhance shock temperature of green pellets.
球文石是碳酸钙的同质多象变体，最不稳定，很少在自然界出现。
By optical microscope, vaterite , a very unstable polymorphism of calcium carbonate, which rarely appears in nature, has been discovered.
带 有孔洞的料筒有利于料球在高温真空还原时，镁、钙、锶蒸气的快速扩散，缩短了反应时间。
When the pellets are reduced in high-temperature vacuum, the charging barrel with holes is beneficial to quickly dispersing steam of magnesium, calcium and strontium and shortening the reaction time.
本发明属于纳米生物材料领域，涉及磷酸钙纳米结构空心微球及其制备方法。
The invention belongs to the field of nano biomaterials and relates to a calcium phosphate nano-structure hollow microsphere and a preparation method thereof.
本发明属于纳米生物材料领域，涉及磷酸钙纳米结构空心微球及其制备方法。
The invention belongs to the field of nano biomaterials and relates to a calcium phosphate nano-structure hollow microsphere and a preparation method thereof.
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