以下为句子列表：
英文: 182 is this drawing in effect?
中文: 这张图纸有效吗？
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英文: Abstract: Discusses the principle and method of drawing in model space and paper space,analyses their characteristic,shows clearly the difference between the two and their application scope.
中文: 文摘:讨论了模型空间与图纸空间中绘图的原理、方法，分析了它们各自的特点，指出了它们各自的适应场合，可供不同的绘图采用。
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英文: Abstract: This paper,from the result of importance analysis of spring design and drawing in engineering design,points out a overall scheme based on the spring design and drawing integration.Spring CAD system has been developed.
中文: 文摘:通过对弹簧设计与绘图在工程设计中地位和作用的分析，提出了一个基于弹簧设计与绘图一体化的总体方案，从而建立了弹簧CAD系统。
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英文: Agree with brother Du.Practical weapons in Han dynasty were placed horizontally usually,as for weapons in drawing in Yinan,I think it's a honor halberd.
中文: 同意独兄观点,汉代实用兵兰兵器陈列多为横置,至于沂南画象石上的兵器,我认为那是棨戟.
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英文: Calculations suggest that, like an ice skater drawing in her arms, the contraction made the planet rotate faster, by perhaps three microseconds.
中文: 如同溜冰选手夹紧手臂会使旋转加速一样，这样的收缩也会使地球加速旋转，根据计算，自转一圈所需的时间可能减少了约百万分之三秒。
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