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

外文翻譯--防范矸石山災(zāi)害-展示頁

2025-01-24 02:21本頁面
  

【正文】 ble discard for the treasure, the economy energy, manage pollution of the environment, have the important economic performance and social performance. The national coal mine stone mountain basic circumstance The our country coal mine produce currently under condition, the coal mine the stone in the process exhausts to have great capacity is a raw coal about of 10%。s coal mine stone mountain fell to cause a slippery ascent, result in heavy celebrated city ten thousand prosperous areas ten thousand new village in the east town 14 residents39。s houseses drive ruin, 21 people death, 3 people get is from theto as May 15th in 2005, even coal group four mineral stone mountains took place successively twice to collapse disaster from the , resulting in 8 people die in an accident totally, more than 100 personses get hurt, 6 among those peoples39。Again such as 1975, the kiln fell to sink area to take place the stone mountain an explosion trouble on the sweet , the mushroom cloud is up to 100 meters, 200 meters temperature inside the scope reaches to 500 time trouble the personnel die 20 people, severely wounded more than 40 stone personses。The coal stone is suffering to pour a function of dissolve the water under, will pollute its circumferential soil and the groundwater. Guard against the main technique of the stone mountain disaster. Put out the technique measure that the stone mountain bees angry from the .The stone mountain occurrence after, the most in mon use put out a method to have:The excavation puts out a method,surface to overlay a method and sprinkles to infuse a method and notes the syrup 39。s the sprinkling to infuse a method is to bustion the area spray the lime milk or other to extinguish fire the syrup liquid, lowering the fire area the temperature on the other hand, in the meantime make use of some positions in the syrup liquid is overlay in the stone surface, obstruct the stone to oxidize the syrup method will extinguish fire material to ask for help again the machine dint to press it after make into the syrup liquid into the stone mountain inner part, making the syrup liquid permeate the crevice that the fills to the stone mountain several kinds stone extinguish fire a method in mon usely each have merit and shorting, surface39。The surface sprinkles to infuse a method to go in brief and easily, but extinguishes fire the syrup liquid hard the infiltration stone mountain inner part, the result isn39。Note the syrup method result best, adopt this method more at home and abroad. The soil plants a quilt green turn to manage a slippery ascent of the stone adoption plants methods, such as forest and plant...etc. to e green turn the stone mountain to be not a few way of doings with the most in mon use mineral areas currently, and manage the result of the stone mountain also more ideal, can cure for good the dust and stone mountain to collapse to fall appear the mudslide,big area slippery ascent etc. phenomenon during the period of raining season such as the water city mineral industry(group) big river bank coal mine original stone the order to manage the stone mountain thoroughly, that mineral carries out a fragrant root grass living creature to manage by 4 years manage, now then the stone top of hill, basic all full with the concentration connect the fragrant root of the slice grass, the stone have mountain didn39。t be real cancellation the mineral area air pollution
點(diǎn)擊復(fù)制文檔內(nèi)容
公司管理相關(guān)推薦
文庫吧 www.dybbs8.com
備案圖鄂ICP備17016276號-1