这是可能的变量与节流阀进气系统增加到76到82毫米、优化缸盖和排气系统压力较低。
This is made possible by the variable intake system with a throttle valve enlarged from 76 to 82 millimeters, the optimized cylinder heads and an exhaust system with low backpressure.
对于大型反重力铸造设备的气路系统，重点从气路系统的进气环节、调节环节和排气环节进行了设计研究。
Thirdly, the paper provides lots of information on the pneumatic system of the equipment, puts emphasis on the design of gas-in part, adjustment part and gas-out part of different systems.
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