safety navigation

常見例句

Safety navigation should be borne in mind.
時刻牢記安全航行第一。
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How to ensure the safety navigation of vessels was an important issue for scholars in navigation field.
如何保障船舶航行安全一直是航海界專家學(xué)者研究的重點(diǎn)。
To solve the design matter related to channd bends, the basic requirements of the width in accordance with the need of safety navigation is analyzed.
爲(wèi)解決彎曲航道的設(shè)計問題，從確保船舶航行安全的角度，重點(diǎn)分析對航道寬度的要求；

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