名词
中文翻译：研磨机
同义词：
['grinding machine', 'milling machine例句：1. The engineer used a trowelling machine to smooth the surface of the metal before painting it.（工程师使用研磨机将金属表面打磨光滑，以便上漆。）']
例句：
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1. The engineer used a trowelling machine to smooth the surface of the metal before painting it.
工程师使用研磨机将金属表面打磨光滑，以便上漆。
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2. The trowelling machine is essential for grinding small parts and making them ready for assembly.
研磨机对于打磨小零件并使其准备好组装至关重要。
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3. The trowelling machine was designed to quickly and efficiently remove rust from metal surfaces.
这款研磨机被设计用来快速且高效地从金属表面去除锈迹。