名词
中文翻译：桅杆测距仪
同义词：
['mast range', 'masthead range']
例句：
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1.The sailors used the mast gauge to measure the height of the mast.
水手们使用桅杆测距仪来测量桅杆的高度。
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2. The captain was checking the mast gauge before setting sail.
船长在启航前检查桅杆测距仪。
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3.The mast gauge helped us determine the exact distance between the ships.
桅杆测距仪帮助我们确定了两艘船之间的距离。