It designs a special craft and equipment of Cold rolling rough machining for manufacturing inner gears and spline with big modulus interior involutes profile.
对于制造大模数渐开线形的内齿和花键，设计了特定冷轧粗加工工艺及其装备。
As dirt and other collateral material collect along an interior pipeline wall, or as the pipeline wall corrodes, the flow profile for the gas flow traveling through the pipeline changes.
由于灰尘和其他相关材料沿着内部管道壁，或者由于管道壁腐蚀，气体流过管道的流量剖面改变。
As dirt and other collateral material collect along an interior pipeline wall, or as the pipeline wall corrodes, the flow profile for the gas flow traveling through the pipeline changes.
由于灰尘和其他相关材料沿着内部管道壁，或者由于管道壁腐蚀，气体流过管道的流量剖面改变。
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