您要查找的是不是：
- Coal miners; coal seams; coal haulers. 煤礦工; 煤層; 運煤工
- The Gaussian curvature of No.3 coal seam in Qinshui basin is calculated. 計算了沁水盆地3號煤層的高斯曲率。
- Factors affected coal seam permeability change and its law is analyzed. 分析了煤層透氣性變化的影響因素及變化規律。
- The outburst-proneness of 6# coal seam are studied with five indexes. 采用5種指標對該礦6%23煤層沖擊傾向性進(jìn)行了實(shí)驗研究。
- Coal seams intermixed with iron ore. 煤層和鐵礦混雜在一起。
- The way and principle of Gaussian curvature method for forecasting natural fracture zones in coal seam are discussed. 摘要論述了高斯曲率法預測煤層天然裂隙發(fā)育區的基本原理和方法。
- Outburst prevention technique of excavating in coal seam will be directly concerned colliery safety production and excavates taking over. 摘要突出煤層煤巷掘進(jìn)防突直接關(guān)系到煤礦的安全生產(chǎn)和采掘接替。
- Coal seams intermixed with iron ore . 煤層和鐵礦混雜在一起。
- Long- wall double working- face combined winning technical practice in faull lager small section coal seam. 斷層帶小塊段煤層走向長(cháng)壁雙工作面聯(lián)合開(kāi)采技術(shù)實(shí)踐。
- Research on coal bedding structure is the theory foundation and precondition of coal seam gas exploitation. 煤體層理結構的研究是煤層氣開(kāi)發(fā)開(kāi)采的理論基礎和前提條件。
- So it is feasible used the logging data to forecast coal seam gas content,and the applied value is enhance further. 證明用測井資料預測煤層瓦斯含量是可行的,從而進(jìn)一步加強了測井資料的實(shí)際應用價(jià)值。
- The authors used the Analytic Hierarchy Process(AHP) in the researches of coal seam floor water-irruption. 將系統工程中的層次分析法引入煤層底板突水的研究中。
- The technology of roadway protection with coal waste residue concrete and application in thin coal seam are introduced. 介紹了煤矸渣混凝護巷技術(shù)及其在薄煤層中的應用。
- The main coal seam of Taiping colliery is 11~# coal seam with a thickness of 1.5 m. 太平煤礦主采11%23煤層;煤厚1.;5 m
- The gauge can simultaneously measure quantity and pressure of water infused into coal seam. 該水表能同時(shí)測定注入煤層中的水量和注水壓力。
- Usually for mining maximal coal resources,repeated mining is used especially in specially thick coal seam. 為了最大限度的開(kāi)采煤炭資源,通常進(jìn)行復采,尤其是特厚煤層。
- The phenomenon of water vaporization during infusing water into coal seam was studied. 對煤層注水的水分蒸發(fā)現象進(jìn)行了研究；
- The crack in the coal seam is divided into two kinds:endogenic crack and exogenous crack. 煤層中的裂隙分兩種,即外生裂隙和內生裂隙。
- Water-coal mixture burst is a new mine disaster in exploiting steeply inclined thick coal seam mining. 摘要急傾斜厚煤層開(kāi)采時(shí)發(fā)生的水煤體潰泄是一種新的礦井災害。
- The reserves of thin coal seam shearer and the developing trend of coal seam shearer of our country are analysed. 分析我國薄煤層儲量以及薄煤層采煤機的發(fā)展狀況及趨勢。
