名词
中文翻译：主轴超速齿轮衬套
同义词：
['mainshaft overdrive', 'mainshaft drive gear', 'mainshaft drive bushing']
例句：
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1. The engine's performance was significantly improved by the installation of this new mainshaft overdrive gear bushing.
通过安装这种新的主轴超速齿轮衬套，发动机的性能得到了显著提升。
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2.The engineer carefully inspected the mainshaft overdrive gear bushing before installing it in the machine.
工程师在将这个主轴超速齿轮衬套安装到机器之前，仔细检查了它。
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3.The overdrive gear bushing is designed to reduce noise and vibration during high-speed operation.
超速齿轮衬套的设计目的是在高速运行过程中减少噪音和振动。