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1. The convergent nozzle is used to control the flow ofoil in the engine.
收敛喷嘴用于控制发动机中油的流动。
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2. The engineerdesigned a new convergentnozzle that could reducefuel consumption by up to 30%.
工程师设计了一种新型收敛喷嘴，可以降低燃油消耗高达30%。
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3. Theconvergent nozzle was installed inthe factory's cooling system to improveefficiency.
在工厂的冷却系统中安装了收敛喷嘴以提高效率。