Improvernent on technology of mineral separation in lan bridge ore - dressing plant liancheng manganese mine 连城锰矿兰桥选厂选矿工艺的改进
2.
This article tells of the exploding process on high - platform of lanqiao mine . it has improved exploding result of practice in the period of exploding work 摘要介绍了福建连城锰矿兰桥矿区高台阶爆破过程，通过对爆破参数的选择，穿爆工作的组织与施工，提高爆破效果的实践。
3.
Other animals were trapped in tar pits ， and the bigger animals like the elephants ， sabre - toothed cats ， and numerous other creatures that are found at rancho la brea ， which is now just a suburb of los angeles 有的动物掉进天然沥清坑里被保存下来，如在兰桥?拉?布里（现为洛杉矶郊区）发现的大象、剑齿虎和许多其他动物。
4.
This article tells of internal emission of mining space in east mining section after enlarging lanqiao mine region of liancheng mine under the condition of the limit of volume of toppling earth 摘要介绍福建省连城锰矿兰桥矿区扩大露采后，现有大禾底排土场的容量不能满足新增废石量的情况下，对东采场采空区内排方案进行的探讨。
