sea navigation mark 水上航标
sea navigation aids 海区航标
coral reef sea navigation 珊瑚礁海区航法
A friend is a bright moon in the dark, books is the heart of the sea navigation lights.
朋友是黑暗中的明月,书籍是心海里的航灯。
We want to enhance cooperation with other countries to uphold navigation security in the South China Sea and security in the Malacca Strait.
我们愿意与有关各国加强合作,共同维护南海航行的安全和马六甲海峡的安全。
By the navigation of microwave, the navy paved a pavement on the wavy sea.
借助微波导航,海军在多浪的大海上铺了一条路。
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