本通告将同时执行并行操作 或是几乎平行的仪表跑道 民航组织秘书处应空中导航局的要求 在研究小组的协助下 由若干缔约方提名的成员组成 国家和国际组织。

This circular on simultaneou~o perations on parallel or near-parallel instrument runways has been prepared by the ICAO Secretariat at the request of the Air Navigation Commission, and with the assistance of a study group made up of members nominated by several Contracting States and international organizations.