储罐抗拉环、抗压环的定义? 在API 650 5.1.5.8 罐顶板与包边角钢焊接章节里有下面一句话: The top-angle sections, tension rings, and compression rings shall be joined by butt-welds having complete penetration and fusion. Joint efficiency factors need not be applied when conforming to the requirements of 5.10.5 and 5.10.6. 请盖德给澄清一下:top angel , tension ring, compression ring分别指的什么,有什么区别?谢谢 查看更多0个回答 . 5人已关注