在近几十年的煤炭开采中,工作面落地煤的丢失一直是一件令人头痛的事,落地煤丢失最严重时几近采煤量的四分之一,令人触目惊心。尽管在落地煤的管理上各矿都采用过多种办法,但却收效甚微。而在近年来核子秤使用以后,这一令人头痛的问题迎刃而解了。 In recent decades of coal mining, the loss of coal on the working face has been a headache. It is shocking to note that the cost of a quarter of the coal collected at the time of the most serious loss of ground coal is alarming. Although various measures have been adopted in the management of falling ground coal, it has had little effect. After the use of nuclear scales in recent years, this troubling problem has been solved.