名词
中文翻译：Unknown
同义词：
['front-end loader', 'front-end loader']
例句：
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1. The front-end loaders are used to move heavy materials.
前置装载器用于搬运重物。
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2. The front-end loaders have been upgraded to improve efficiency.
前置装载器已升级以提高效率。
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3. The front-end loaders are essential for the construction industry.
前置装载器对于建筑业至关重要。