例句與造句

1. No . of heating section of machine barrel
   機筒加熱段數(shù)
2. Heating power of machine barrel
   機筒加熱功率
3. Machine barrel and screw arbor of extrusion machine both adopt quality alloy steel , with nitriding and fine machining
   擠出機的機筒螺桿均采用優(yōu)質(zhì)合金鋼，經(jīng)氮化和精密加工。
4. It's difficult to find machine barrel in a sentence. 用machine barrel造句挺難的