填空题
发布日期:2020-04-11
“输出功率” (nominal power),也叫做“标称输出功率”(nominal output power)。 "输出功率" 在学术文献中的解释:对于其他电器而言,标称功率,也叫标称输出功率,它是指在电器不失真的前提下,能够长时间工作输出功率的最大值,而最大功率是指在不损坏电器的前提下瞬时功率的最大值,也就是电器所能承受的最大负荷能力。输出功率=输入功率-无用功的功率。
用指定的方法检验测试某种物体(气体、液体、固体)指定的技术性能指标。适用于各种行业范畴的质量评定,如:土木建筑工程、水利、食品、化学、环境、机械、机器等等。
针对带电作业,通过专门的设计或改进、试验及保养,能完成某一具体任务的工具和(或)装置的组件。示例:架线设备,便携式接地和短路设备,带电清洗设备等。
题王网让考试变得更简单
扫码关注题王,更多免费功能准备上线!
此试题出现在
其他考试
Lucky is the man who has no "skeleton in his closet". When a man has done something in his life that he is ashamed of, that he wants to hide, he is said to have a "skeleton in his closet". Some people may have more than one skeleton. As we have noted many times, it is hard to find out how these expressions begin. Sometimes, we get some hard facts. But more often we have to depend on guesswork. And that is true of this phrase, which came from England. Before 1932, English law did not permit a doctor to cut open a dead human body for scientific examination, unless it was the corpse (尸体) of an executed (处决) criminal. But when it became legal, more and more doctors demanded skeletons for a more scientific study of medicine. It was helping in the advance of modern medicine. The demand had become so strong that men began to rob tombs and sell skeletons to doctors at high prices. We are told that a doctor would usually buy just one skeleton for scientific study. It became very important in his work. But he had to keep it hidden because most people objected to keeping such a thing. As a rule, the doctor would keep his skeleton in some dark corner where it could not be seen, or hide it in a closet. After a time, people began to suspect (怀疑) every doctor of hiding a skeleton in the closet. From this suspicion, the phrase "a skeleton in the closet" took on a broader, more general meaning to describe anything that a man wanted to keep others from discovering. It could be proof of a criminal act, or something much less serious. Well, that is one theory. One writer, however, believes that the phrase might have come from something that really happened. It is his guess that a hidden closet in some old English country home may have turned up a real skeleton, clear proof of some old family shame or crime. Well, one man’s guess is as good as another. But this sounds like a story by the great French novelist, Balzac. Baizac tells us of a man who suspected his wife of having a lover. The husband comes home by surprise. But she hears him and quickly hides her lover in the closet of her bedroom. He enters her room and asks her if she is hiding her lover. He says he will not open the door to the closet if she promises him there is no one there; He will believe her. She answers firmly that she is not hiding anyone in the closet. The husband then begins to build a solid brick wall against the closet. His wife watches, knowing that her lover will never come out alive. But she will not change her story and admit her guilt.From the story Balzac told we know that the wife’s lover must have become ().
社会资本扩大再生产的前提条件是怎样的?
简述薪酬满意度调查的功能。
以实践作业为主的兴趣小组属于( )。
北方园林受自然地理条件的限制,河溪湖泊、园石和长绿树木均较少,但景区面积很大。风格趋于____。
下列条款中,投资框架协议的内容具有法律约束力的是()。
成人糖尿病酮症酸中毒胰岛素治疗采用()
多见于中年女性的是( )。
弃船求生过程中将会遇到的危险是()。
女,48岁,近1个月感口渴,饮水量增至每天2000ml。身高156cm,体重71kg,空腹血糖10.0mmol/L,餐后血糖14.0mmol/L,系初次发现血糖高,过去无糖尿病史。给患者的治疗建议是()
暂无相关推荐~
针对输出功率30dBm以下(包括30dBm)的设备,输出功率检测范围要求大于等于().
针对输出功率30dBm以上的设备,输出功率检测范围要求大于等于().
一台标称最大输出功率为10W的干放,当输入载波数量为4载波时,其输出功率最大可达到()dBm/载波.
起动机空载时的输出功率为(),全制动时的输出功率为(),当电流约为()的一半时,输出最大功率。
起动机空载时的输出功率为(),全制动时的输出功率为(),当电流约为()的一半时,输出最大功率。
手机的受控最小输出功率就是在手机天线接口处测量的当()功率控制指示最小输出时的输出功率。
()电路的特点是光生伏特器件在自偏置电路中具有输出功率,且当负载电阻为最佳负载时具有最大的输出功率。
手机的受控最小输出功率就是在手机天线接口处测量的当()功率控制指示最小输出时的输出功率。
一台调光台灯由单相交流调压电路供电,设该台灯可看作电阻负载,在α=0°时输出功率为最大值,试求功率为最大输出功率的80%、50%时的开通角α。
选频直放站都有4个选频信道时,每载波信号的输出功率衰减().8个选频信道时,每载波信号的输出功率衰减().