名词
中文翻译：升降杆
同义词：
['lifting bar', 'lifting rod', 'lifting lever']
例句：
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1.The lifter drawing bar is used to lift heavy objects from the ground.
升降杆用于从地面举起重物。
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2.The lifter drawing bar was designed to make it easier for people to move around the building.
升降杆的设计是为了使人们更容易在大楼内移动。
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3. The lifter drawing bar was a crucial component in the construction of the new elevator.
升降杆是新电梯建造中的关键部件。