| 释义 |
navigational aid短语⁹⁶⁶⁷⁷⁺⁶
基本例句
导航设备
Considered a navigational aid to ships entering the harbor, the statue was first administered by the U.S Lighthouse Board before eventually falling under the jurisdiction of the National Park Service.
它被认为是给进港的船只导航的标志，因此在归于国家公园管理处管理之前它都是在美国灯塔局管理的。 yeeyan
Holding airspace is usually established over the navigational aid;
等待空域通常划设在导航台上空； lawyee
Radar apparatus, radio navigational aid apparatus and radio remote control apparatus.
雷达设备、无线电导航设备及无线电遥控设备。 china-customs |