Two officials who are being held responsible for a coal mine flood that left nine people dead and five others missing in Northeast China's Heilongjiang province have been removed from their posts, authorities said Thursday.

黑龙江省鹤岗市2日发生煤矿透水事故，9人遇难，5人失踪。当地政府周四发表声明称已将两名负责官员撤职。

上面报道中的mine flood就是”煤矿透水“，也可称为colliery flood，是指在坑道里采煤的时候，因为挖穿洞壁接通地下水或者积水的废弃坑道而引发的事故。此次事故发生之后，鹤岗兴安区一名负责work safety（安全生产）的官员，以及该区coal mine safety supervision bureau（煤矿安监局）的一名官员removed from office（被免职）。

Coal mining（采煤）是一个危险系数很高的行业，稍有疏忽就可能造成mine blast（煤矿爆炸）或mine flood（煤矿透水）等coalmine mishap/accident（矿难）。其中开采strip mine/open mine（露天煤矿）要比在mine shaft（矿井）下作业安全。