development end是什么意思

用法例句

Practice of ore block preliminary mining design used as exploration gradation change;

矿块采准工程兼探矿变级在白云金矿的实践

Based on the experiment by using split rockbolt support at Peifeng Mine Yanwu +35m-21#,Fujian Coal and Electricity Corporation,the paper proves that split rockbolt support in developing entry has advantages over the traditional support and other rockbolt supporting types.

通过对福建煤电公司培丰煤矿延五+35m-21#运巷进行缝管式锚杆支护试验,证明缝管式锚杆支护相对于采准巷道的传统支护方式及其他类型锚杆支护有较大优势,是一种支护及时、经济有效的新型锚杆支护形式,是采准巷道支护改革的一个方向。

The paper introduces the main content of mine development plan at the east of F17.

介绍了F_(17)以东矿山采准方案比较的主要内容,分析了采准方案设计与选择中需要考虑的因素,提出了矿山生产中应研究解决的一些问题。