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1. Prominent problems in the governance of old residential district With the impact of the housing system reform，due t......
17 samples were collected from aeolian and lacustrine profiles within the environment sensitive zone of the Loess Platea......
Consolidation mechanism of gold concentrates containing sulfur and carbon during oxygen-enriched air
Consolidation in calcines is a common problem in the oxygen-enriched air roasting of refractory gold concentrates contai......
The leaching behavior of a copper flotation concentrate was investigated using ammonium persulfate (APS) in an autoclave......
选用醋曲、醋液、自制酵母3种发酵剂在5℃和35℃对精料进行发酵，以醋曲发酵乙酸产量最高(P<0．01)，醋液与自制酵母发酵差异不显著(P>0．0......
Consolidation mechanism of gold concentrates containing sulfur and carbon during oxygen-enriched air
Consolidation in calcines is a common problem in the oxygen-enriched air roasting of refractory gold concentrates contai......
研究了铋盐共沉淀分离富集及火焰法测定铅的最佳备件，在pH8.9的溶液中，用氨水定量沉淀铅。样品中微量铅测定结果的相对标准偏差为1.2......
85头长大阉割仔猪随机分成3组，第1组为对照组，第2组和第3组为试验组。分别用“8800”、“华双三号”和“中双4号”浓缩料配合成全价......
管理型财务软件、因特网以及电子商务的兴起，将网络财务这一崭新的模式引入财务管理，并成为财务领域研究的热点问题。网络财务有时间......
养兔具有投资少，效益高，见效快等优点。兔养殖中存在的主要问题是幼兔死亡率高。山西省幼兔平均成活率为５７％，全国兔的死亡率为３０％－５０％，严重影响养......
实验室试验表明，随着煤炭变质程度的增加，煤样平均粒径的降低和所含全水分 增加，微波干燥效果变差。对试验数据分析，微波干燥浮选煤煤......
铜筹款的沥滤的行为专注在一个压热器系统用铵 persulfate (APS ) 被调查。APS，活跃的氧，和酸的媒介的分解产品被用来从 concentrate......
通过对钼矿石和产品的分析 ,针对钼矿石的性质采取了相应的措施 ,探讨了提高钼精矿品位的途径。......
In Argentina, there are many sources of copper concentrates. Some of them are currently in operation, while others are i......
Evolution,current status and advances in application of platelet concentrate in periodontics and imp
Platelet concentrates(PC)[platelet-rich plasma(PRP)and platelet-rich fibrin(PRF)]are frequently used for surgical proced......
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Background:The simplest and most convenient food technology is the using of dry composite mixtures.They have a lot of ad......
The aim of this article is to review the outcomes of platelet preparations in dentistry.A structured electronic search d......
