问题
问答题 简答题
简述自阀制动区的作用和各阀通路正常情况下使列车减速或停车时使用此位置？
答案
参考答案：
各阀状态和通路如下：
（1）调整阀：初减压时呈制动状态，均衡风缸压力降至与减压量相适应时自动呈制动后保压状态。
（2）放风阀：无通路。
（3）重联柱塞阀：均衡风缸管1→中均管4
（4）缓解柱塞阀：①总风缸管3→通路8a；②过充管7→大气。
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简述自阀制动区的作用和各阀通路正常情况下使列车减速或停车时使用此位置？
参考答案：
各阀状态和通路如下：
（1）调整阀：初减压时呈制动状态，均衡风缸压力降至与减压量相适应时自动呈制动后保压状态。
（2）放风阀：无通路。
（3）重联柱塞阀：均衡风缸管1→中均管4
（4）缓解柱塞阀：①总风缸管3→通路8a；②过充管7→大气。
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| The parents of two boys (14 and 16 year-olds) went on a trip for the weekend with friends. They left early 1 Friday morning, and left the boys at home. That evening the boys 2 their dad's car to see a movie. They 3 a good time. After the movie 4 , they got back to the car. They saw a big hole ( 洞) at the 5 of the car. They were terrified ( 恐惧的) and asked 6 to fix ( 修理) the car. After that they drove it back home. Their parents came back on Sunday, but the boys didn't tell them about the hole 7 they were too terrified. The father went out in his 8 . When he came back, he was 9 and said to the family, "Someone drove 10 the back of my car on Thursday and now it is fixed well!" | ||||
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