Other articles of vulcanized rubber other than hard rubber.
硫化橡胶(硬质橡胶除外)的其他制品。
Meanwhile, waste fibers play a role in reinforcing a hard rubber material.
同时，废纤维对硬质橡胶材料起到增强作用。
At that time every attempt to make rubber hard and strong came to nothing.
那时想把橡胶做得既硬又结实的尝试全失败了。
The wish of Goodyear to make rubber hard and strong came true at last.
古德伊尔要想增大橡胶硬度和强度的愿望最终实现了。
Generally use the soft rubber type sealing ring seal, hard seal ring-type metal seal used.
软密封型一般采用橡胶环密封，硬密封型通常采用金属环密封。
Life should be as hard and tough as a rubber ball.
生命应如橡胶球一样坚韧。
Life should be as hard and tough as a rubber ball.
生命应如橡胶球一样坚韧。
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