名词
中文翻译：双关节
同义词：
['double connection', 'double joint']
例句：
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1.The engineer used a double joint to connect the two beams together.
工程师使用一个双铰接点将两根梁连接在一起。
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2.The double joint made it easier for the machine to move around.
双铰接点使机器更容易移动。
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3. The double joint was designed to provide greater strength and stability.
双铰接点的设计是为了提供更大的强度和稳定性。