名词
中文翻译：扩张器
同义词：
['expander', 'pressurizer']
例句：
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1.The expander punch was used to create the intricate patterns on the fabric.
扩张器冲头被用来在布料上创造出复杂的图案。
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2. The pressurizer punch is essential for ensuring the integrity of the packaging.
压力机冲头对于确保包装的完整性至关重要。
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3.The engineer designed a new expander punch that could handle heavier materials.
工程师设计了一种新型的扩张器冲头，能够处理更重的物料。