利用光镜、显微硬度计研究了铬含量对低碳合金钢组织、硬度、冲击韧度及耐均匀腐蚀性的影响。
The influences of chromium content on the hardness, impact toughness and corrosion resistance of low carbon alloy steel were studied using om and hardness tester.
目的：观察低钙透析联合罗钙全冲击治疗对维持性血透患者继发性甲状旁腺功能亢进的疗效和安全性。
Objective: To observe the curative effects and safety of Rocal pulse therapy combined with low calcium dialysis in patients with secondary hyperparathyroidism undergoing haemodialysis.
结果表明，在中、低冲击磨料磨损条件下，试验钢的耐磨性优于中碳低合金耐磨钢和高锰钢。
Under lower and medium impact energy, the abrasive wear resistant performance of the steel metioned is higher than that of low alloyed medium carbon wear resistant steel and high manganese cast steel.
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