navigation marker是什么意思 navigation marker怎么读
navigation marker的用法和样例
- Urban dominant industry is an important underpinning of regional economic development, and is a navigation mark of regional industry modernization.
摘要区城城市主导产业是区城经济发展的主要支柱，是区域产业现代化的航标。 - Any lights in the vicinity of the navigation aids or navigational lanes that jeopardize navigation safety shall be properly screened.
航标和航道附近有碍航行安全的灯光，应当妥善遮蔽。
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