As in the obstacle race, different techniques are required over different obstacles, as well as different qualities of athletes.
在障碍赛跑中，不同的障碍有不同的跨越方法，对运动员的素质也有不同的要求。
The combustion process of gas with coal dust or gas with different obstacles in fire-accelerating pipelines has been experimentally studied.
在火焰加速管中，对不同障碍物情况下的纯瓦斯、有沉积煤尘的瓦斯燃烧过程进行了实验研究。
The combustion process of gas with coal dust or gas with different obstacles in fire-accelerating pipelines has been experimentally studied.
在火焰加速管中，对不同障碍物情况下的纯瓦斯、有沉积煤尘的瓦斯燃烧过程进行了实验研究。
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