名词
中文翻译：拉杆环
同义词：
['handle', 'handle bar', 'lever ring']
例句：
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1.The car has a draw-bar ring that can be adjusted to fit different seat heights.
这辆车有一个可以调整以适应不同座位高度的拉杆环。
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2.The chef used a draw-bar ring to lift the heavy pot off the stove.
厨师用拉杆环把沉重的锅从炉子上抬起来。
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3. The engineer tested the new design by drawing a line around the edge of the circle with the draw-bar ring.
工程师通过使用拉杆环在圆的边缘画一条线来测试新设计。