safe navigation in fog 船舶雾航安全
safe navigation in pier waters 桥区安全通航
navigation safe rate 通航保证率
area safe for surface navigation 水上安全航行区
The accurate sea surface wind forecasting is the important guarantee for ship's safe navigation and typhoon evasion.
准确的海面风速预报是舰艇航行安全和防台工作的重要保证。
Inland river navigation marks are important navigation aid facilities for safe navigation of vessels in inland rivers.
内河航标是船舶在内河安全航行的重要助航设施。
The sea peril forecast and prevention are an important means in the guarantee of the safe navigation and reduction of sea perils.
海事预测与预防是保证航行安全,减少海损事故发生的重要手段。
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