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- Taking the seven bar mech-anism as a living example, the effectiveness of this method was testified. 以七杆机构为实例，验证了该方法的有效性。
- The mood changes abruptly after six or seven bars of wayward decrescendo. 六七个小节长时间的渐弱之后，音乐的情绪陡然改变了。
- Barker, C. R., and P. L. Tso, “Three Position Path Generation Synthesis of Planar Four Bar Mechanisms using SYNTRA,” ASME Mechanism Conference, 1988. 曾威达，滑块式肘节机构之合成与应用，硕士论文，国立清华大学动力机械工程学系，民国八十三年七月。
- Using the vector method to analyse and solve kinematics of the crank-pilot bar mechanism,thus established the kinematical mathematic model of the crank-pilot bar mechanism. 为了求解曲柄导杆机构的运动学规律,运用矢量法进行了分析,建立了曲柄导杆机构的运动学数学模型。
- Lockup regularly occurs at seven o'clock. 夜间关门时间通常是在七点钟。
- It is used in the optimum design of four bar mechanism with given motion regulation and multi-constrains.The results show that the two algorithms are practical and the algorithm is more effective. 针对机构运动轨迹能够最佳逼近某一给定运动规律，且机构约束较多，采用改进蚁群算法对其进行优化计算。
- She has as many as seven sisters. 她的姊妹有七人之多。
- She won two third places in the seven events. 她在七项比赛中得了两个第三名。
- I want to sing at a karaoke bar next. 接下来，我想去卡拉OK酒吧唱歌。
- There are seven continents in the world. 世界上有七大洲。
- The baby weighed seven pounds at birth. 那婴儿出生时重七磅。
- The dinner consists of seven courses. 晚饭有七道菜。
- He will have a drink in the bar after work. 下班之后他总去酒吧喝一杯。
- Poor health may be a bar to success in life. 健康不佳可能成为人一生中取得成功的障碍。
- She's go to play the opening bar of the sonata. 她准备演奏这支奏鸣曲的开始数小节。
- The bar in the slum is a den of iniquity. 这个贫民窟里的小酒吧是一个充满罪恶的场所。
- Four multiplied by seven is twenty-eight. 7乘4等于28。
- He had to support his seven children, to say nothing of his wife and parents. 他要养活自己的七个孩子，更不必说还有妻子和父母了。
- The ship crossed the bar safely. 船平安地穿过沙滩。
- The drunk man lost his pouch in the bar. 那个喝醉了的人在酒吧里丢失了钱袋。
