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- Marble is the degenerative cliff that the original rock in the lithosphere forms through action of high pressure of the high temperature inside the lithosphere. 大理石是地殼中原有的巖石經(jīng)過(guò)地殼內高溫高壓作用形成的變質(zhì)巖。
- The original rock temperatures defined the level to which all alteration of rock temperatures must be related. 原始巖石的溫度限定巖石溫度的所有變化都必須關(guān)聯(lián)層位。
- The characters of deep mine are larger raw rock pressure,larger ore body plasticize,mine pressure severe appearance. 深礦井的特征是原巖壓力大、礦體塑性大及礦山壓力顯現劇烈。
- The original rock temperatures defind the level to which all alteration of rock temperatures must be related. 巖石溫度的所有變化都必然和具有原始巖石溫度的層位有關(guān)系。
- The caving of thick and strong roof stratum,key stratum,causes tremendous rock pressure in mine. 采場(chǎng)上覆巖層中的厚硬巖層,即厚硬關(guān)鍵層,其冒落會(huì )造成劇烈的礦山壓力顯現。
- Due to the effect of a flow of cool air along the rock walls, the original rock temperatures are disturbed. 由于冷空氣沿巖壁流動(dòng)影響，原始巖石溫度受到了破壞。
- All experimental investigations about the geothermal conditions are based on measurements of original rock temperatures. 有關(guān)地熱條件的所有實(shí)驗研究都是建立在測量原始巖體溫度的基礎上。
- Accoording to the result on observation of rock pressure,adaptability of telescopiform bolt in soft rock road and reasonable structural parameter are analysed. 根據礦壓觀(guān)測結果分析了可拉伸錨桿對軟巖巷道支護的適應性及其合理的結構參數。
- On the basis of the observation to rock pressure,the strata behavior regularity of 93305workface is summarized,and the reason is analyzed,rome reasonable advices is put foreward. 在礦壓觀(guān)測的基礎上，總結了該工作面的礦壓顯現規律，并對原因進(jìn)行分析，最后就工作面的開(kāi)采提出合理建議。
- The original rock of the “Lucky Red” Sandstone is sedimentary quartzitic sandstone, which can be traced back to the Silurian period 0.438 billion years ago. 該石的原巖為沉積型石英砂巖，其形成最早可追溯至距今4.;38億年前的志留紀時(shí)代。
- Based on measured rock pressure and experimental data under thick watered loose bed of Wanbei mining area,dimorphism and mutation characteristics of ultrathin bedrock working face roof are discussed. 以皖北礦區厚含水松散層下超薄基巖開(kāi)采工作面實(shí)測礦壓資料與實(shí)驗數據為依據,論述了超薄基巖工作面頂板的風(fēng)化變異特征。
- Based on measured rock pressure and experimental data under thick watered loose bed of Wanbei mining area, dimorphism and mutation characteristics of ultrathin bedrock working face roof are discussed. 摘要以皖北礦區厚含水松散層下超薄基巖開(kāi)采工作面實(shí)測礦壓資料與實(shí)驗數據為依據，論述了超薄基巖工作面頂板的風(fēng)化變異特征。
- Its original rock is sedimented in the environment of active epicontinent-seaboard with basic volcanism, and become khondalite series through the Archean regional high-amphibolite facies metamorphism. 原巖形成于具有基性火山作用的活動(dòng)大陸邊緣濱海-淺海環(huán)境。經(jīng)過(guò)太古宙的區域高角閃巖相變質(zhì)作用，形成孔茲巖系。
- Under composite roof inthe No.2 seamof Tunlan mine,bolt-rope strenthenningsupporttechnique is utilized to control roof ad decrease rock pressure,which has achieved good economic bene-fit. 介紹了屯蘭礦在2號煤層復合頂板條件下,采用錨索補強支護技術(shù),有效地控制了巷道頂板離層,減輕了礦山壓力顯現現象,取得了較好的經(jīng)濟效益。
- The paper deals with the origin of minerals in the greenstone-typed gold mines in the gold mines area of Eastern Hebei,and returns greenstone to its original rock in the mineral-sourced layers. 論述了冀東金礦集中區綠巖型金礦的礦質(zhì)來(lái)源，并恢復其礦源層的原巖。
- The relationship of roadway surrounding rock pressure and supporting performance is interacting and counteracting.Only coordination between them can make possible a better support. 巷道圍巖壓力與支護能力是一個(gè)相互作用與反作用的關(guān)系,兩者之間必須協(xié)調才能取得較好支護效果。
- Their original rocks are volcanic rocks, epicontinental clastic sedimentary rocks, and ophiolite of volcanic and island arc tholeiitic series or calcium alkali series. 其原巖巖石類(lèi)型有火山巖，陸緣碎屑沉積巖，火山、島弧拉斑系列或鈣堿系列火山巖、蛇綠巖等。
- This article narrates the rock pressure measurement methods for working face under the shallow burial and the thick, fluid sands in detile,analyzes and gets the regulations of rock pressure phenomena. 本文敘述了厚流砂層下淺埋工作面的礦壓觀(guān)測方法,分析得出了其礦壓顯現規律;
- Most metamorphic rocks have been greatly changed and deformed that any fossils preserved in the original rocks will not be recognizable. 絕大多數變質(zhì)巖曾遭受過(guò)劇烈的變化和變形，任何在原巖中保存的化石將因這種后來(lái)的變化和變形而無(wú)法辨認。
- The results indicate that their original rocks, may be a basic pyrogenic or volcanic rocks and have the trace element distribution feature of oceanic basalt. 稀土元素,微量元素地球化學(xué)特征顯示上述巖石具有大洋中脊拉斑玄武巖及島弧、火山弧玄武巖元素分布特征。
