名词中文翻译
中文翻译：封闭井
同义词：
['closed well', 'sealed well', 'sealed chamber例句：1. The engineer shut the well down to prevent further contamination.（工程师关闭了井以防止进一步的污染。）']
例句：
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1. The engineer shut the well down to prevent further contamination.
工程师关闭了井以防止进一步的污染。
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2. The well was sealed off to prevent any further leaks.
为了阻止任何进一步的泄漏，这个井被密封了。
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3. The well was closed for maintenance after a minor accident.
在一次小事故后，这个井被关闭进行维护。