简要分析带锁止离合器的综合式液力变扭器工作特性。_爱下问搜题

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问题问答题简答题

简要分析带锁止离合器的综合式液力变扭器工作特性。

答案

参考答案：

在i_WB1区域，为变扭器工作状态，K>1；在i₁≤i_WB≤i₂区域，为耦合器工作状态，K=1；当i_WB>i₂时，锁止离合器接合，K=1，效率上升至100%，即发动机动力直接经变扭器壳、压盘、涡轮输出。汽车在城市道路行驶可节省大约4%燃油，在公路行驶大约节省6%燃油。

完形填空

One of my next-door neighbors is a sweet 92-year-old Polish lady. A few days ago, I came back home from a trip. As I was 1 my clothes in my room, I heard a(n) 2 ,violent knock on the door. It was 10:30 pm, and I wasn’t sure who it could be. I went downstairs and 3 the peephole（猫眼）, and saw that it was our sweet next-door neighbor.
I quickly 4 the door, and she seemed really distressed and kept 5 , “please help me, I need your help. The fire alarm won’t go off. Please help me.” I 6 told her that everything would be okay, and 7 her to her house to see what was going on 8 the fire alarm.
She 9 that the alarm had been going on and off inconsistently for the past two hours, and that her 10 to call her daughter to come and fix it was fruitless. So I took a chair from her dining room table, 11 it, and looked at the fire alarm.
After twisting the fire alarm off, I blew into it, because sometimes 12 causes it to make strange noises. She seemed 13 but was exactly shaking out of fear. I asked her 14 she was okay, and she said she was 15 , so I gave her a hug. I felt her shaking in my embrace, and held her _16_ for a few minutes until she stopped shaking and sighed a breath of relief.
We then 17 and talked for ten minutes, until I felt that she was okay, and safe to sleep. She was so generous with 18 for being with her, but I thanked her for 19 me that hugs are indeed good tools! So, sometimes, a(n) 20 hug is a good and powerful way to hold someone going through a difficult period.

A．looked through

C．complaining

C．immediately

B．accompanied

C．responsibility

C．automatically

D．turned around

C．encouraging

判断题

凡是生长植物的土地，不论是自然植被或人工栽培的，包括农林牧生产用地及园林用地，均可称为绿地。