水力增压器利用两工作腔活塞与柱塞面积之差，将输入低压转换为输出高压。
By the area difference between the piston and the plunger in their respective working Chambers, the hydraulic booster can transfer the input lower pressure into output high pressure.
结合车用发动机增压器叶轮复杂铝铸件结构特点，确定了电磁泵充型低压铸造生产工艺。
Considering the structure characteristic of turbo-charge blade wheel of complex aluminum alloy in vehicle engine, the production process for electromagnetic pump low-pressure coasting is determined.
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