名词
中文翻译：主吊索
同义词：
['main wire', 'main cable', 'main line']
例句：
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1.The main catenary is the primary support structure of the bridge.
主吊索是桥梁的主要支撑结构。
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2. Main catenaries are often used in power transmission systems.
主吊索常用于电力传输系统。
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3.The engineers carefully designed the main catenary to ensure stability during construction.
工程师们仔细设计了主吊索，以确保施工过程中的稳定性。