One day, my mom cut a rim off an old water barrel and then held it up for me to throw an old rubber ball through.
一天，我妈妈从一个旧水桶上割下一个圆框，挂了起来，让我往里扔一个旧像皮球。
One day, my mom cut a rim off an old water barrel and then held it up for me to throw an old rubber Ball through.
记得有一天，母亲把一只旧水桶沿边剪下一个圈来，为我举着，让我投橡皮球玩。
The behaviors and characteristics of rubber in a few screws, including conventional screw, barrier screw, barrel pin screw and cut-transfer mixer screw were analyzed .
介绍了普通型、强力剪切型、销钉机筒型及传递型橡胶冷喂料挤出机螺杆螺槽内胶料流动特性理论研究的动向。
The behaviors and characteristics of rubber in a few screws, including conventional screw, barrier screw, barrel pin screw and cut-transfer mixer screw were analyzed .
介绍了普通型、强力剪切型、销钉机筒型及传递型橡胶冷喂料挤出机螺杆螺槽内胶料流动特性理论研究的动向。
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