摘要:逆向彗星（anti-tail） 彗星朝向太阳方向伸出的彗尾，称之为逆向彗星，也成反常彗星；大（重）的彗星尘埃和颗粒没有因太阳光的压力而分散，而是留在了彗...
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In this paper, the technical channel, match ratio, mechanical property, and anti-chlorine permeability of HPC with tail mineral sand are studied systematically.
系统的研究了尾矿人工砂的技术路线、配合比、机械性能和高强混凝土的氯离子渗透试验。
Methods The rats' pain threshold was measured by tail-flick latency after oral administration of anti-pain powder.
方法口服抗痛粉，用辐射热甩尾法测定大鼠痛阈。
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