詞語：longhole
longhole的解釋
longholen. 深泡眼；深眼
longhole的意思
longhole 深泡眼;深眼;深(炮)眼;longhole infusion 深孔注水;longhole survey 深孔測量;longhole drilling 深孔鑽鑿;longhole method 深孔爆破開採法;
longhole的參考例句
1.casting blast method of mining parallel moderate longhole and sector moderate longhole in the topple chamber. 平行中深孔拋擲爆破採礦法；斜上山硐室扇形中深孔拋擲爆破採礦法。
2.Generally, the precision of longhole drilling now is fairly poor in China, which seriously restricts the development of the large diameter longhole mining technology. 目前，國內深孔鑿巖的鑽孔精度普遍較低，這一現狀嚴重地制約大直徑深孔採礦工藝的進一步發展。
3.In the test, the heaps were constructed by the longhole blasting. In order to control the heap shape and the ore grain size, the method and parameters of longhole caving were analyzed. 試驗中，採用了深孔爆破落礦築堆，為了控制築堆形狀和礦石粒度，對深孔落礦方式和參數作了分析研究；