freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

納林廟二礦30mta新井設(shè)計(jì)-薄基巖淺埋煤層采場(chǎng)頂板運(yùn)動(dòng)規(guī)律研究采礦工程專業(yè)畢業(yè)設(shè)計(jì)畢業(yè)論文(編輯修改稿)

2025-02-13 02:32 本頁(yè)面
 

【文章內(nèi)容簡(jiǎn)介】 ....................................................................................52 運(yùn)輸距離和貨載量 ......................................................................................................52 礦井運(yùn)輸系統(tǒng) ..............................................................................................................52 運(yùn)輸設(shè)備選擇 .....................................................................................................................53 設(shè)備選型原則: ..........................................................................................................53 運(yùn)輸設(shè)備選型及能力驗(yàn)算 ..........................................................................................53 大巷運(yùn)輸設(shè)備選擇 .............................................................................................................55 主運(yùn)輸大巷設(shè)備選擇 ..................................................................................................55 輔助運(yùn)輸大巷設(shè)備選擇 ..............................................................................................55 運(yùn)輸設(shè)備能力驗(yàn)算 ......................................................................................................568 礦井提升 ...................................................................................................................................57 礦井提升概述 .....................................................................................................................57 主副井提升 .........................................................................................................................579 礦井通風(fēng) 及安全 .......................................................................................................................59 礦井概況、開拓方式及開采方法 .....................................................................................59 礦井地質(zhì)概況 ..............................................................................................................59 開拓方式 ......................................................................................................................59 開采方法 ......................................................................................................................59 變電所、充電硐室、火藥庫(kù) ......................................................................................59 工作制、人數(shù) ..............................................................................................................60 礦井通風(fēng)系統(tǒng)的確定 .........................................................................................................60 礦井通風(fēng)系統(tǒng)的基本要求 ..........................................................................................60、礦井通風(fēng)方式的選擇 ...............................................................................................6礦井主扇工作方式選擇 ...........................................................................................6礦井通風(fēng)系統(tǒng)的要求 ...............................................................................................6工作面通風(fēng)方式的選擇 ...........................................................................................62 礦井風(fēng)量計(jì)算 .....................................................................................................................63 工作面所需風(fēng)量的計(jì)算 ..............................................................................................63 備用面需風(fēng)量的計(jì)算 ..................................................................................................65 掘進(jìn)工作面需風(fēng)量 ......................................................................................................65 硐室需風(fēng)量 ..................................................................................................................66 其它巷道所需風(fēng)量 ......................................................................................................66 礦井總風(fēng)量 ..................................................................................................................66 風(fēng)量分配 ......................................................................................................................67 礦井阻力計(jì)算 .....................................................................................................................68 礦井最大阻力路線 ......................................................................................................68 礦井通風(fēng)阻力計(jì)算 ......................................................................................................73 礦井通風(fēng)總阻力 ..........................................................................................................74 兩個(gè)時(shí)期的礦井總風(fēng)阻 和總等積孔 ..........................................................................74 選擇礦井通風(fēng)設(shè)備 .............................................................................................................75 選擇主扇 ......................................................................................................................75 電動(dòng)機(jī)選型 ..................................................................................................................77 安全災(zāi)害的預(yù)防措施 .........................................................................................................77 預(yù)防瓦斯和煤塵爆炸的措施 ......................................................................................77 預(yù)防井下火災(zāi)的措施 ..................................................................................................78 防水措施 ......................................................................................................................7810 設(shè)計(jì)礦井基本技術(shù) 經(jīng)濟(jì) 指標(biāo) .................................................................................................79專題部分薄基 巖淺埋煤層采 場(chǎng)頂板運(yùn) 動(dòng)規(guī) 律研究 ...............................................................................81參 考文 獻(xiàn) .....................................................................................................................................107翻譯部分英文原文 .................................................................................................................................109中文翻譯 ...............................................................
點(diǎn)擊復(fù)制文檔內(nèi)容
環(huán)評(píng)公示相關(guān)推薦
文庫(kù)吧 www.dybbs8.com
備案圖片鄂ICP備17016276號(hào)-1