名词
中文翻译：主阀
同义词：
['main valve', 'primary valve例句：1. The main valve is responsible for controlling the flow of gases through the engine.（主阀负责控制气体通过发动机的流动。）2. Main valves are often used in industrial applications to control the flow of materials.（主阀常用于工业应用中，以控制物料的流动。）']
例句：
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1. The main valve is responsible for controlling the flow of gases through the engine.
主阀负责控制气体通过发动机的流动。
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2. Main valves are often used in industrial applications to control the flow of materials.
主阀常用于工业应用中，以控制物料的流动。
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3.Main valves are essential components of any system that requires precise control over fluid flow.
任何需要精确控制流体流动的系统都离不开主阀。