名词
中文翻译：膨胀器
同义词：
['expander', 'spring-operated expander']
例句：
-
1. The spring expander is used to adjust the height of the roof.
弹簧式膨胀器用于调整屋顶的高度。
-
2. The engineer designed a spring expander to prevent water leakage.
工程师设计了一个弹簧式膨胀器以防止漏水。
-
3. The spring expander was installed in the factory to test the new product.
弹簧式膨胀器被安装在工厂以测试新产品。