名词
中文翻译：扣合关节
同义词：
['saddle joint', 'hinged joint例句：1. The old car had a cottered joint in the rear wheel.（这辆旧车后轮有一个扣合关节。）']
例句：
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1. The old car had a cottered joint in the rear wheel.
这辆旧车后轮有一个扣合关节。
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2.The scientist used a cottered joint to connect two pieces of metal together.
科学家用一个扣合接头将两块金属连接在一起。
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3. The engineer tested the cottered joint for strength and durability.
工程师测试了扣合接头的强度和耐用性。