孔放（？－？）：孔子十四代孙。西汉丞相孔光之子，孔霸之孙。
本文提出了一种矿房矿柱阶段性连续回采，深孔放顶处理空区的采矿方法。
This paper introduced a new method for it, ie continuous stoping of room and pillar in stages and to fill mined bed with falling roof by deep-hole blasting.
改变一下吧，在米饭中间放一块冰块，然后盖上保鲜膜，当然，加热之前还要在保鲜膜上戳几个孔。
Change that by placing an ice cube in the center of the rice and then wrapping the top with plastic wrap, with a few punctures of course, before reheating it.
布放后应保留适当长度于引进端人（手）孔或拉箱内。
应用推荐