名词短语
中文翻译：舵柄下悬挂的舵杆
同义词：
['under-rudder', 'under-rudder-stock']
例句：
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1.The pilot had to adjust the under-rudder to keep the plane level.
飞行员不得不调整舵柄下的舵杆，使飞机保持水平。
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2. The old ship's under-rudder was a relic of its past glory.
这艘旧船的舵柄下舵杆是它过去的辉煌遗迹。
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3. The captain carefully checked the under-rudder before taking off.
船长在起飞前仔细检查了舵柄下舵杆。