名词
中文翻译：退位杆
同义词：
['recessing rod', 'recessing lever']
例句：
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1.The carpenter used a recessing bar to remove the screws from the wall.
木匠使用一个退位杆来从墙上移除螺丝。
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2. The engineer tested the recessing bar for strength and durability.
工程师测试了退位杆的强度和耐用性。
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3. The construction worker used a recessing bar to lift the heavy beam off the floor.
建筑工人使用一个退位杆将沉重的梁从地板上抬起。