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1.The pneumatic-hydraulic control system is crucial for the operation of the machine.
气动液压控制系统对于机器的运行至关重要。
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2. The engineer designed a new pneumatic-hydraulic control system to improve efficiency.
工程师设计了一种新的气动液压控制系统，以提高效率。
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3. The pneumatic-hydraulic control system was used in the construction of the bridge.
气动液压控制系统被用于桥梁的建设。