探讨了稀土化合物用作环保汽油抗爆剂的可能性.Capabilities using rare earth compounds as environmentally friendly gasoline antiknocks were explored.介绍了MMT抗爆剂在中国石油锦西石化公司的使用情况.The article introduces the application status of MMT antiknock additiv...
他正患鼻粘膜炎.He was suffering from nasal catarrh.摘要目的探讨在放射性粘膜炎中是否存在致病菌方法.Objective To investigate pathogen lose existing or not in patients with radiation mucositis.目的: 观察顽固性咽部溃疡 ( RPU ) 患者咽部组织粘膜炎细胞的病理意义.Objective : To study ...
至于复杂性与表面的不规则性, 表面结构, 毛羽程度和织造加工有关.Complexity is related to surface irregularities, surface texture, fuzziness, and weave.纱线毛羽严重影响无梭织造和高密织物的产质量.Yarn hairiness seriously influences and quality of high - speed weaving and hi...
The tower is a relic of grim days when big houses had to be fortified against invaders...这座塔是那些灰暗岁月的遗迹，那时大房子不得不被加固,以抵御侵略者。The Archaean and Katarchaean units are preserved mainly as relic masses.太古界与远太古界主要作为残余体保存下来.German...