共查询到20条相似文献,搜索用时 46 毫秒
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1 I was part of a crew that was sent on a task into outer space. The task was carried out successfully and I was on my way back to earth with my friends. 相似文献
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It was a bright, sunny September morning, and I was in a huge, pale pink ball gown, with a tiara on my head, waving to the crowds on either sides of the street. I was sitting on a float with eight other girls, who were all wearing the same ball gown, grinning from ear to ear as the parade continued down the boardwalk from one end of the beach to the other. While some people may feel awkward or uncomfortable to be on display in a parade like that, I thought it was an exhilarating (令人振奋的) experience. 相似文献
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Mr Baker was a strong man. He was a good footballplayer and spent a lot of time on the game when hestudied in a medical callege (医学院). But he was hurtonce when he was playing football with his friends. Hisright leg was broken in the accident and he couldn't playany longer. He was sorry for it and liked to watch thegame. Now the young man worked in a hospital. He was agood dentist (牙医) and many patients asked him forhelp. He was always busy and had little time to watchthe matches. He had to watch them on TV at home in 相似文献
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Last week Fred had to go toNew York.It was his first timethere,and he didn’t know his wayaround the city.He had a meetingat 10 o’clock.and he wanted tobe on time.The meeting was inthe Peterson Building on 34thStreet,but Fred didn’t knowwhere that was.Seeing two menstanding on a corner,he askedthem. 相似文献
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The dynamic response of an infinite beam placed on a Pasternak foundation when the system was subjected to a moving load was investigated. We used the double Fourier transform and its inversion to solve the formulations of the problem. A closed form analytic solution of the beam was obtained by the theorem of residues. We selected a numerical example to illustrate the dynamic response of the beam on Pasternak and Winkler foundations, respectively. We discuss the effect of the moving load velocity on the dynamic displacement response of the beam. The maximum deflection of the beam increases slightly with increased load velocity but increases significantly with reduced shear modulus of subgrade at a given velocity. The maximum deflection of a beam resting on a Pasternak foundation is much smaller than that of a beam on a Winkler foundation. 相似文献
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The story happened in France began with a little nice metal can lying quietly on a concrete pillar.A boy's voice was talking about the games he liked most to play.His name is Julian.The can was a present sent by his mum,who was seriously ill and loved him very much. One day,a girl called Sophie came into his sight.She came from Poland,and not accepted by French people.The boy gave the can to her and the story between them started from then on.They made bets on a lot of crazy things,making fun of the teacher, pulling the big cake to the floor on a wedding ceremony... With the can and these bets,they grew up,but the only thing unchanged was their still communicating with each other making 相似文献
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《中学英语之友(高一版)》2007,(9)
Ⅰ.单项填空 1. There are altogether eleven books on the shelf, ____ five are mine. A. on which B. in which C. of which D. from which 2. Jasmine was holidaying with her family in a wildlife park ____ she was bitten on the leg by a lion. A. when B. while C. 相似文献
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《中学英语之友(初二版)》2010,(4)
(A)On a snowy evening,a rich lady was standing by the road.She was very worried.Her car had broken down.Just then a poor man named Robert came.He was on his way back home from work as usual. 相似文献
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One day, when I was at an airport waiting for my flight, I had to make a phone call. I looked around and found all the phones were busy. So I went to wait in line and stood there for a long time.The person talking on the phone was an old man and I could hear the conversation clearly. He was talking about his trip in this city. He said he was having a good time. He commented on(评论) the weather here and asked about the weather back there. While he was talking, he was eating a sandwich and drinking coffee. 相似文献
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《语数外学习(初中版)》2008,(Z1)
One day when Jack was walking in the park, he saw a woman he knew sitting on a bench with a dog beside her. The dog was looking up at the woman. 相似文献
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刘志存 《语数外学习(初中版)》2008,(1):86-87
One day when Jack was walking in the park, he saw a woman he knew sitting on a bench with a dog beside her. The dog was looking up at the woman. 相似文献
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Hound-Pup was a very little pup(小狗),There was one big thing about him,It was his ears,His ears looked very big on a pup that was so little. 相似文献
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Thomas Edison was a famousAmerican scientist.When he was a child,he liked to find out how things worked.One day when he was five years old,his father found him sitting on the eggs.His father was surprised and asked why hedid so.He said that since a hen co… 相似文献
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Edgar Scavino Dzuraidah Abdul Wahab Aini Hussain Hassan Basri Mohd Marzuki Mustafa 《浙江大学学报(A卷英文版)》2009,10(6):794-799
An experimental machine vision apparatus was used to identify and extract recyclable plastic bottles out of a conveyor belt. Color images were taken with a commercially available Webcam, and the recognition was performed by our homemade software, based on the shape and dimensions of object images. The software was able to manage multiple bottles in a single image and was additionally extended to cases involving touching bottles. The identification was fulfilled by comparing the set of measured features with an existing database and meanwhile integrating various recognition techniques such as minimum distance in the feature space, self-organized maps, and neural networks. The recognition system was tested on a set of 50 different bottles and provided so far an accuracy of about 97% on bottle identification. The extraction of the bottles was performed by means of a pneumatic arm, which was activated according to the plastic type; polyethylene-terephthalate (PET) bottles were left on the conveyor belt, while non-PET bottles were extracted. The software was designed to provide the best compromise between reliability and speed for real-time applications in view of the commercialization of the system at existing recycling plants. 相似文献
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I was really happy as I set my foot in Xiangshan Park.Birds were twittering and the sunwas shining bright on the trees.I t was difficult to find such a fine day in winter.As a student who was afflicted by a large amount ofhomework,I was tired of living in the city. 相似文献
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Good luck Xiao Ming lived in a town. He worked in a big factory. There was a big park in the middle of the town. He often went to the park on Sundays. Xiao Ming went to the park on his bike yesterday. He was unhappy because his licence was taken back by the policeman the day before yesterday. He was thinking about it while he was riding. Suddenly a bike hit him. He and the other man fell off their bikes. The man hurt his face and Xiao Ming hurt his hands. He got up quickly and came over t… 相似文献