1、钢筋宽体（Reinforced wide body） 2、四气门结构（Four valve structure） 3、进气口和增加的中间室的吸气管（Air intake and increase the middle chamber of the intake pipe） ..
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Two design strategies that three-way valve control unsymmetrical cylinder and four way valve control symmetrical cylinder were analyzed from principle and system structure aspects.
对船用舵机泵控系统中位置控制单元的三通阀控制非对称缸和四通阀控制对称缸的两种设计方案进行了理论分析和系统结构分析。
The fastening structure can be widely applied in engines which adopt four-valve double-overhead camshaft structures.
可以广泛应用于四气门双顶置凸轮轴结构的 发动机。
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