名词
中文翻译：外部混凝土振动器
同义词：
['外置混凝土振动器例句：1. These external concrete vibrators are designed to improve the compaction of concrete.（这些外部混凝土振动器旨在提高混凝土的密实度。）']
例句：
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1. These external concrete vibrators are designed to improve the compaction of concrete.
这些外部混凝土振动器旨在提高混凝土的密实度。
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2.The construction crew used these external concrete vibrators to speed up the pouring process.
施工队使用这些外部混凝土振动器来加快浇筑过程。
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3. The engineer inspected the external concrete vibrators to ensure they were functioning correctly.
工程师检查了外部混凝土振动器，以确保它们正常工作。