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The earliest Chinese ancient glasses before the West Han Dynasty (200 BC) from different regions are studied. The glass ......
Continuous annular chromatography(CAC) is a separation process for multicomponent liquid mixtures. The performance of th......
一把旧钥匙上有一句意义深远的铭文——如果休息,我就会生锈。对那些因懒散而烦恼的人来说,这是至理名言。甚至最勤勉的人也可以以......
For the purpose of solving the problem that too large pole tip recession (PTR) is produced in magnetic rigid disk beads ......
Deeply penetrated welds can be produced with high-power-density lasers.Thus the factors affecting laser weld penetration......
In lost foam casting (LFC), the distribution of polymer beads during the bead filling process is not uniform, and the co......
当老妇人祈祷的时候,牧羊少年为什么会感到害怕呢?The old woman led the boy to a room at the back of her house.It was separa......
通过分析煤粉的矿物结构可知，研磨后煤粉中的矿物可分为独立矿物和细分散状矿物两种类型。煤粉燃烧后大部分独立矿物形成飞灰中的玻......
以甲壳素为原料,制备出壳聚糖载体,并对脲酶进行固定化.通过测量悬挂醛基探讨了交联条件对载体性能的影响,优化了脲酶的固定化条件......
以氯磺隆为模板分子,甲基丙烯酸二乙氨基乙酯为功能单体,三甲氧基丙烷三甲基丙烯酸酯为交联剂,乙腈为致孔剂,在60℃温度下,采用热......
利用微流控技术制备出粒径大小可控、粒径均匀、形状规则的聚乳酸（PLA）载药微珠,确定了流动相和分散相的条件,研究了分散相与流动相......
Hepatocellular carcinoma(HCC)is one of the most common types of malignant tumor.Although radical surgery and liver trans......
通过流动度、需水量比、胶砂活性指数、混凝土工作性及抗压强度试验，建立一元回归方程，研究了微珠对C60高强商品混凝土性能的影响。......
透射式脉搏测量方法能快速准确测量心率,已被医学以及生活广泛应用。但采用该方法的商用测量仪使用驱动电流大,会导致使用者体感不......
回 回 产卜爹仇贱回——回 日E回。”。回祖 一回“。回干 肉果幻中 N_。NH lP7-ewwe--一”＄ MN。W;- __._——————》 砧叫]们......
Broadband Mie scattering is used to determine the parameters of polystyrene aerosol beads in air,such as size and wavele......
促生根际菌——Plant Growth Promoting Rhizbacteria菌(简称PGPR),是一种能够促进植物生长、防治病害、增加作物产量的微生物。本......
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