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电容器外壳温度超过()摄氏度或室温超过40摄氏度,电容器应停止运行。
法治国家
客车制动机的稳定性是指:在制动管内压缩空气缓慢减压(不超过规定值)时,制动机不发生制动作用的性能。
培训就是人们经常说的开发,二者在内涵和实质方面都是一致的。
用户端蝶形引入光缆统一采用标签进行标识,标签标识必须规范、牢固。
直流电治疗中,小儿电流密度一般为()。
能有效制止四肢出血的止血方法是()。
在巨厚的湖相沉积层上发育的具有陡壁的小丘与风蚀沟槽、洼地相间分布的地貌组合是( )。
国际经济法的渊源
下列哪项关于艾滋病的描述是错误的?( )
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