名词
中文翻译：关闭的十字头
同义词：
['closed head', 'closed crossbar', 'closed crosspiece']
例句：
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1. The engineer carefully closed the crossheadto ensure the bolt was secure.
工程师小心翼翼地关闭十字头，确保螺栓牢固。
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2. The constructioncrew had to dismantle the crosshead before starting the new project.
施工队在开始新项目之前必须拆卸十字头。
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3.The tool's crosshead is designedto fit perfectly into the hole, makingit easy to adjust the angle.
该工具的十字头设计得能完美地插入孔中，使调整角度变得容易。