问题
问答题 简答题
国标GB9652—1988中对大型电调静特性品质有哪些规定？
答案
参考答案：（1）、调速器静特性曲线应近似为一条直线，其最大非线性度小于5%；
（2）、转速死区的实测值与给定值之差小于±10%。
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国标GB9652—1988中对大型电调静特性品质有哪些规定？
参考答案：（1）、调速器静特性曲线应近似为一条直线，其最大非线性度小于5%；
（2）、转速死区的实测值与给定值之差小于±10%。
A passenger (乘客) told an air hostess (空姐) that he needed a cup of water to take medicine when the plane just took off. She told him that she would bring him the 46 soon. Twenty minutes 47 , when the passenger’s ring for service sounded, the air hostess realized it at once. She was kept so busy that she 48 to bring him the water. Therefore, the passenger was held up (延迟) to take his medicine. She hurried over to him with a cup of water, but he 49 it. In the following hours on the flight, 50 time the air hostess passed the passenger, she would ask him with a smile 51 he needed help or not. But the passenger never 52 her words. When he was going to get off the 53 , the passenger asked the air hostess to hand him the passengers’ booklet (意见簿). She was very 54 . She knew that he would write down sharp words, which might make her 55 the job. 56 with a smile she handed it to him. Off the plane, she 57 the booklet, and cracked a smile, for the passenger put it, “On the flight, you asked me if I needed help for twelve times 58 . How can I refuse 59 twelve sincere smiles?” That’s right! It was the twelve smiles of the air hostess that touched (感动) the passenger 60 and of course she wouldn’t lose her job!
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