| 1. | Application of chopped - off head lead in yanmazhuang mine of jiaozuo 首级导线在焦作演马庄矿的应用 |
| 2. | Safety evaluation of mine ventilation system of yanmazhuang coal mine 演马庄煤矿通风系统安全性评价 |
| 3. | Study on improving iron recovery of mazhuang concentrator of laiwu iron mine 提高莱芜铁矿马庄选厂铁回收率的研究 |
| 4. | The test study on underground coal gasification at mazhuang coal mine in xuzhou 徐州马庄煤矿煤炭地下气化试验研究 |
| 5. | Mazhuangshan gold deposit is of shallow - seated middle - low temperature subvolcanic hydrothermal origin 马庄山金矿成因为浅成中低温次火山热液矿床。 |
| 6. | In the case of nanmazhuang ma 2 block , two conditions , oil production increase and water production control are considered . and an optimum plan is determined after comprehensive comparison 以华北南马庄马2断块为例,考虑了增油和控水两种情况,通过对比分析得出最优方案。 |
| 7. | This paper aims at analyzing the causes that diversify peasants ' occupations , on the basis of the study of present situation of shui nationality in longma village of nandan county in guangxi 通过对广西南丹县龙马庄水族农民职业分化进行初步研究,分析了影响农民职业分化的基本动因。 |
| 8. | Based on the fossil and isotopic data , langquan formation and poziquan formation are classified into lower carboniferous , while heishishan formation and mazhuangshan formation into upper carboniferous 结合古生物化石和同位素年龄资料,将狼泉组和坡子泉组划归下石炭统,黑石山组和马庄山组划归上石炭统。 |
| 9. | The study of geological characteristics and geochemical conditions of mazhuangshan gold deposit shows that it is closely related with old metamorphic basement and volcano - magmatic activities as well as volcanics and volcaniclastics of mazhuangshan - mingshui superimposed volcanic basin , and controlled by structures derived from closure of late palaeozoic honghe basin 摘要对马庄山金矿地质特征及地球化学条件研究表明,马庄山金矿的形成与古老变质基底、火山岩浆活动及马庄山一明水上叠火山岩盆地的火山岩、火山碎屑岩紧密相关,并受到晚古生代红河盆地闭合而派生的构造控制。 |