名词
中文翻译：阀门调节时间
同义词：
['valve timing', 'valvetiming adjustment']
例句：
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1. Thevalve timing is critical for the engine's performance.
阀门调节对于发动机的性能至关重要。
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2.The technician adjusted the valve timing to improvefuel efficiency.
技术人员调整了阀门调节时间以提高燃油效率。
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3. During the maintenance, themechanic checked the valve timing and replaced theworn parts.
在维护期间，机械师检查了阀门调节时间并更换了磨损的部分。