It can get a better precision of gas gushing in deeper coal according to building grey linearity model in Beichen coal Mine.

通过建立灰色线性回归组合模型，较好地预测了北辰矿井田深部的瓦斯涌出量。

youdao

Tian Zaixing, general manager of the Beichen Fortune Center movie theater in the southern city of Kunming, said he could not recall any other imported film being halted on the opening day.

NPR: China Pulls 'Django Unchained' On Day Of Premiere