循环承诺 Revolving Commitment
环承式平旋桥 rim bearing swing bridge
非循环承载形函数 [数] acyclic carrier function
环承平火柴线 Pacific Rim of Fire
环承平洋区域 Pacific Rim
循环承销便利 Revolving Underwriting Facilities ; RUF
资源环境承载能力监测预警机制 mechanisms for monitoring and giving early warnings on the carrying capacity of resources and the environment
支承环 support ring ; ring ; bearing ring ; [机] Supporting ring
该区域分别为五环路，四环路，机场高速路和京承高速路环绕，距离中心城区30公里，距离首都机场11.5公里。
The region is surrounded by the Fifth Ring Road, Fourth Ring Road, Airport Highway and Jingcheng Road. It is 30 kilometers away from downtown and 11.5 kilometers from the capital airport.
该装置主体由内管、外管、活塞管、端盖、承压环、吊耳、液路元件和密封元件等组成。
The device is mainly made up of inner tube, outer tube, piston tube, end cover, retaining ring, hanger, liquid-route element and sealing element.
为北京城市五环、六环，太旧高速、石黄高速、京承高速、北京城市铁路交通建设做出了贡献。
It plays an important role in the construction of Beijing urban rail transit , such as Wuhuan Road, Liuhuan Road, Taijiu High-speed Road, Shihuang High-speed Road, Jingcheng High-speed Road.
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