集装箱船在结构上常采取哪些加强措施，为什么？
参考答案：
集装箱船的货舱口宽度几乎与货舱宽度一样大，对船体的抗弯、抗扭和横向强度很不利，在结构上应采取补偿措施。
1.采用双层底和双层舷侧结构，且在双层舷侧的顶部设置抗扭箱结构；
2.在船的顶部和底部的强力部分采用纵骨架式；
3.增加甲板边板和舷顶列板的厚度；
4.加强两个货舱口之间的舱口端梁和甲板横梁等。
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| I can still remember when I met my best friend. She had just moved into the neighborhood and her grandmother brought her down to 1 me. I hid behind my mother and she hid behind her grandmother, 2 to look at each other. Soon we lost the 3 and started playing with each other. In the 7th grade, I first lost touch with her. She was 4 family problems and I deserted her to be with the 5 people. None of my new friends liked her as much as I did because they knew she had 6 . However, every summer we 7 always sit at each other's house, watch soap operas, and talk about all the boys we liked. It was last year when I noticed the problem. I guess I was 8 devoted in high school to 9 she needed someone there. Anyway, she made a new best friend and so did I. Then I didn't know why, 10 she started cutting herself! She then was diagnosed(诊断)with clinical depression. At first, I was very 11 , but we still stayed in 12 I wanted to be there with her since her new best friend basically 13 her and people were calling her 14 . Yesterday she came to me and said, "I never knew what a best friend was 15 you, the only person, would stop me cutting. I 16 your help so much, and you didn't even know you were 17 me." We both cried. And I guess a kind of 18 from my life so far is never to give up on your friends. Even if they aren't as cool as others, or people think they are crazy, they need 19 there. If you desert them, you will only be 20 yourself. | ||||
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