The ground is cold and moist, with the chill factor amplified by ventilation fans used to blow fresh air into the mine, and the sprinkler that keep the coal dust down.
因为有通风设备往里面输送新鲜空气，还有洒水器不断地给煤浇水以降温，所以地下既阴冷又潮湿。
All this adds up to unexpectedly rapid cosmic-ray acceleration in a magnetic field amplified by a factor of more than 100.
所有这些因素加在一起，造成在一个被放大了100倍以上的磁场中宇宙射线的加速异乎寻常地快。
All this adds up to unexpectedly rapid cosmic-ray acceleration in a magnetic field amplified by a factor of more than 100.
所有这些因素加在一起，造成在一个被放大了100倍以上的磁场中宇宙射线的加速异乎寻常地快。
应用推荐