名词
中文翻译：分区环
同义词：
['boundary ring', 'partitioning ring']
例句：
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1. The partition ring is used to divide the space into two parts.
分区环用于将空间分为两部分。
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2. The partition ring was designed to improve the efficiency of the system.
分区环的设计旨在提高系统的效率。
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3. The partition ring was a critical component in the construction of the new bridge.
分区环是新桥建设中的关键部件。