navigation marker的用法和樣例：
例句
- Urban dominant industry is an important underpinning of regional economic development, and is a navigation mark of regional industry modernization.
摘要區城城市主導產(chǎn)業(yè)是區城經(jīng)濟發(fā)展的主要支柱，是區域產(chǎn)業(yè)現代化的航標。 - Any lights in the vicinity of the navigation aids or navigational lanes that jeopardize navigation safety shall be properly screened.
航標和航道附近有礙航行安全的燈光，應當妥善遮蔽。
