As you get better and become more aware of your forward progress during your breathing, talk with your coach on what's best for you in terms of the bodyroll.
当你慢慢地对于换气时身体前行有更多的理解时，请和你的教练讨论一下，看看多大幅度的身体波动最适合你。
2
The results showed that the higher internal stress and serious carbide network in the banded carbide in the inner rollbody were the main causes of heavy back-up roll stationary cracking.
结果表明，辊身心部较高的内应力和在带状碳化物中存在严重的网状碳化物是造成大型支承辊置裂的主要原因。
3
Bucking Machines have a unique design bodyroll giving you one of the most realistic rides available. For training, or use for vendors to make money.