英语翻译河南煤化集团永煤城郊矿采矿专项初步设计摘要：矿井主采煤层为二2煤层，井田面积约为24.5km2，设计年产量为90万吨，井田内煤层赋存比较稳定。煤层倾角平均为10o，煤厚平均2.95m

Question

英语翻译
河南煤化集团永煤城郊矿采矿专项初步设计
摘要：矿井主采煤层为二2煤层，井田面积约为24.5km2，设计年产量为90万吨，井田内煤层赋存比较稳定。煤层倾角平均为10o，煤厚平均2.95m，容重1.47t/m3,瓦斯涌出量不大，属低瓦斯矿井，煤层无自燃发火倾向，矿井涌水量一般。本矿井设计采用立井两水平直接延深的开拓方式，采用综合机械化采煤一次采全高回采工艺，倾斜长壁采煤法，用全部垮落法处理采空区。矿井工作制度为“三八”制，两班生产，一班检修。矿井全部实现机械化，采用先进技术和设备，实现一矿一面高产高效矿井，从而达到良好的经济效益和社会效益。
关键词：立井两水平、综合机械化采煤、倾斜长壁、一次采全高、高产高效

Answer 1

A tentative mining design in YongCheng coal mine area of HNCC group
abstract:
the main coal seam in this mine shaft is two layers,and has an acreage of 24.5 square kilometers,the speciation of coal seam has been found stable.it is supposed to produce 900 thousands tones annually.
coal seam inclination averages10,htickness 2.95 m and capacity 1.47 tones per cubic meter.
it is a gaseous mine with low amount of gas discharge and water inflow.less likely to self-ignate.this shaft is designed to adopt direct deepening with double levels in vertical shaft.compehensive mechanization extraction method will be empolyed ,along with inclined longwell mining method.meanwhile,goaf will be dealt with total caving way.
work system in mine area is arranged 8 hours everyday,two groups are responsible for output while one group for examine and service.the coal mine is operated in whole mechanization and advanced facilities as well as thechnology are equipped,reaching the criterion of one efficient shaft for one mine district ,in order to gain high rewards economicaly and socially.
key words:vertical shaft with two levels; comprehensive mechanization coal mining; inclination longwell; full-seam mining; high yield and efficiency.