block fuel element是什么意思

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Improve development response of fractured, bottom water, massive, metamorphic rock, and buried hill reservoir;

裂缝型底水块状变质岩古潜山油藏改善开发效果研究

The hardness of compacting and blocky magnetite is high and the magnetite has big plasticity,so the magnetite is a kind of tough shooting ore.

致密块状磁铁矿坚硬,同时又具有较大的塑性,属于难爆矿石。

It is identified that a new bulk amorphous alloy with the largest supercooled liquid region TX of 100 K was obtaine.

用铜模铸造方法制备了不同尺寸的Zr55Al10Cu30Ni5-xPdx(x=0,1,3,5)块状非晶合金,采用X射线衍射(XRD)、扫描差热分析(DSC)和透射电镜(TEM)分别对Zr55A110Cu30Ni5-xPdx块状非晶样品的结构、热稳定性和微观组织进行了研究。

The paper was based on preparing the bulk amorphous alloy and testing it's friction and wear property in Cu-Zr-Al system, the process of preparing the bulk amorphous alloy by magnetic levitation melting - copper modle suction method was studied ,what was more, prepared the metallic ,glass matrix composites by unidirectional solidification.

本文以Cu—Zr—Al系块状非晶的制备及其摩擦磨损性能研究为背景，对磁悬浮—铜模吸铸法制备块体非晶作了研究，并用定向凝固法制备了非晶基自生复合材料。

Re and Os concentrations and Os isotopic ratios for disseminated and massive ores from the Jinchuan Cu-Ni sulfide deposit are analyzed.

分析了金川铜镍硫化物矿床的一组浸染状矿石和一组块状矿石的Re、Os含量和Os同位素组成。