| 释义 |
1 ?水落管卡 ... U-frame ==> 非编号帧 U-iron ==> 水落管卡,槽铁 U-MKW mill ==> 可逆式八辊轧机 ...
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Much has changed in Bulgaria since the fall of the Iron Curtain, but corruption and organized crime persist, according to a July 2007 cable from the U. S. Embassy in Sofia. 据驻索菲亚的美国使馆于2007年7月的一封电报说：自从铁幕的到来保加利亚就发生了很大的变化，但是贪污和犯罪集团还在坚持着。 - 2
Angle iron bender apply vertical structure. It can bend inner and outer various angle iron. It also can roll round steel, pipe, square pipe, U steel by changing different roller. 弯角铁机采用立式结构，可将各种规格的角铁进行内弯或外弯滚 圆加工，还可根据使用要求订制更换不同的滚轮，对圆钢、圆 管、方管、槽钢等型材进行滚圆加工。 - 3
The author has established the mechanical model of O-chain iron and U-chain iron respectively, obtained the computing formula of load and stress, and contrasted with example. 本文分别建立了O形环与U形环的力学模型，推导出了载荷、应力分布的计算公式，并引用实例进行了对比分析。
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