名词
中文翻译：封闭式气举装置
同义词：
['closed gas lift', 'closed gas lift installation例句：1. The closed gas-lift installation is a crucial part of the mining process.（封闭式气举装置是采矿过程的关键部分。）2. The closed gas-lift installation helps to reduce air pollution in the mine area.（封闭式气举装置有助于减少矿井区域的空气污染。）3. The closed gas-lift installation was installed to improve efficiency and safety in the mining operation.（封闭式气举装置的安装是为了提高采矿作业的效率和安全性。）']
例句：
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1. The closed gas-lift installation is a crucial part of the mining process.
封闭式气举装置是采矿过程的关键部分。
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2. The closed gas-lift installation helps to reduce air pollution in the mine area.
封闭式气举装置有助于减少矿井区域的空气污染。
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3. The closed gas-lift installation was installed to improve efficiency and safety in the mining operation.
封闭式气举装置的安装是为了提高采矿作业的效率和安全性。