名词
中文翻译：安全水域标志
同义词：
['safety mark', 'safe zone', "safe area例句：1. The ship's crew marked the safe waters to avoid collisions with other ships.（船员在标记安全水域以避免与其他船只碰撞。）"]
例句：
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1. The ship's crew marked the safe waters to avoid collisions with other ships.
船员在标记安全水域以避免与其他船只碰撞。
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2. The company has established a safe waters mark to protect its fishery resources.
该公司已设立一个安全水域标志以保护其渔业资源。
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3.The pilot marked the safe waters before entering the restricted airspace.
飞行员在进入限制空域前标记了安全水域。