名词
中文翻译：单杆活塞
同义词：
['single rod', 'single rod piston例句：1. The engine is designed with a single-rod piston system.（该发动机采用单杆活塞系统设计。）']
例句：
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1. The engine is designed with a single-rod piston system.
该发动机采用单杆活塞系统设计。
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2. The piston has been replaced with a new single-rod piston.
活塞已被新的单杆活塞所替换。
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3. The single-rod piston design improves fuel efficiency.
单杆活塞设计提高了燃油效率。