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By making theoretical analysis on vibration characteristics of a single slab and multi ones set in the inverted arch ring, four processes about stability failure, that is free vibration, locking, sleeking and distortion are proposed on the condition that water sealing was damaged and anchor-hold was out of action, a formula of the slab's maximum free displacement and dynamic equations in each process are obtained.

对反拱水垫塘单底板块和多底板块振动特性进行了理论分析，提出了拱圈底板块失稳分为自由振动、锁定、滑动变形及拱圈失稳四个过程，给出了各振动过程的动力学方程以及底板块自由振动的最大理论高度的计算公式。

This is how the star spangled banner was meant to be flown on the end of a pole of its own, free to wave majestically in our own free air.

美国国旗应当挂在旗杆上，自由自在地在美国领土的上空美丽庄严地飘扬。您觉得最佳答案好不好？目前有0人评价

This is how the star spangled banner was meant to be flown on the end of a pole of its own, free to wave majestically in our own free air.

美国国旗应当挂在旗杆上，自由自在地在美国领土的上空美丽庄严地飘扬。6小时掌握学英语的秘诀！——点击看答案

This is how the star spangled banner was meant to be flown on the end of a pole of its own, free to wave majestically in our own free air.

美国国旗应当挂在旗杆上，自由自在地在美国领土的上空美丽庄严地飘扬。英语论坛，有您的参与更精彩！

This is how the star spangled banner was meant to be flown on the end of a pole of its own, free to wave majestically in our own free air.

美国国旗应当挂在旗杆上，自由自在地在美国领土的上空美丽庄严地飘扬。分页共1页，1/1页次 1页

This is how the star spangled banner was meant to be flown on the end of a pole of its own, free to wave majestically in our own free air.

美国国旗应当挂在旗杆上，自由自在地在美国领土的上空美丽庄严地飘扬。来源：英语图片 http：//photo.englishcn.com

This is how the star spangled banner was meant to be flown on the end of a pole of its own, free to wave majestically in our own free air.

美国国旗应当挂在旗杆上，自由自在地在美国领土的上空美丽庄严地飘扬。下面是我发表的精彩主题，欢迎点评

This is how the star spangled banner was meant to be flown on the end of a pole of its own,free to wave majestically in our own free air.

美国国旗应当挂在旗杆上，自由自在地在美国领土的上空美丽庄严地飘扬。下一篇：什么是嬉皮士和雅皮士？

This is how the star spangled banner was meant to be flown on the end of a pole of its own, free to wave majestically in our own free air.

美国国旗应当挂在旗杆上，自由自在地在美国领土的上空美丽庄严地飘扬以上所有观点仅代表网友个人观点，不代表武汉热线观点。

This is how the star spangled banner was meant to be flown on the end of a pole of its own, free to wave majestically in our own free air.

美国国旗应当挂在旗杆上，自由自在地在美国领土的上空美丽庄严地飘扬。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐