名词
中文翻译：分级接头
同义词：
['grade joint', 'graded connection']
例句：
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1. The engineer designed the machine with agraded joint to ensure smooth operation.
工程师设计的机器带有分级接头，以确保顺畅运行。
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2. The construction teamused graded joints toconnect the beams together.
建筑队使用分级接头将梁连接在一起。
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3. The graded joints in the bridge were designedto distribute the weight evenly.
桥梁中的分级接头被设计来均匀分布重量。