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- The porosity and permeability of rock are related directly to grain size and sorting characteristics. 顆粒大小和分選性對巖石的孔隙和滲透率有直接關(guān)系。
- NMR is a technique used to determine the porosity and permeability of rock formations. NMR是一項用于確定巖層的孔隙度和滲透率的技術(shù)。
- Quantitative relationship between measured permeability of rock core and horizontal stress is studied by regressive analytical technique. 根據巖芯樣品滲透率分析值和巖石水平應力，以回歸分析技術(shù)研究了二者的定量關(guān)系。
- Rock mass always exists in the fields of geostress and seepage,so it is important to study the effect of geostress on the permeability of rock mass. 巖體總是賦存于一定的滲流場(chǎng)與應力場(chǎng)中的,研究地應力場(chǎng)對滲流場(chǎng)的影響具有重要的意義。
- This study uses artificial core and tests the compressibility, porosity and permeability of rock through repeated rising and declining of confining pressure. 本研究采用人造巖心，經(jīng)過(guò)反復升降圍壓實(shí)驗對巖石壓縮系數、孔隙度及滲透率進(jìn)行了測試。
- Near the unconformity surface, the porosity and permeability of rock has obviously been improved.The unconformity surfaces in Permian are the main paths of oil and gas migration. 研究表明,二疊系內部各組地層之間呈不整合接觸,在不整合面附近地層的孔隙度和滲透率明顯增大,因而是油氣運移的主要通道。
- The complicated permeability of rock mass I involving inhomogeneous, anisotropic. unsaturated behaviour as well as the coupling between hydraulic conductivity and deformation are discussed. 論述了巖體復雜的滲透特性，包括滲流的不均勻性、各向異性、非飽和性及滲流與變形的耦合等問(wèn)題。
- This layer of rock contains a lot of flint. 這一巖層中有大量燧石。
- The mountain rise up in a steep wall of rock. 這座山高而陡，形成一道巖石屏障。
- The mountain rose up in a steep wall of rock. 這座山高而陡，形成一道巖石屏障。
- They discovered that in addition to sending tremors that knock down buildings, earthquakes greatly increase the permeability of rocks to transmit fluids including oil. 科學(xué)家們發(fā)現:地震除了產(chǎn)生擊倒建筑的震動(dòng),還能極大地增加巖石的流體通透性,使得石油易于滲透。
- A spur of rock stuck out from the mountain. 山背上突起一個(gè)石脊。
- He managed to hang on to a piece of rock protruding from the cliff. 他設法抓住了懸崖上向外伸出的巖石。
- Two methods are used to evaluate the permeability of cores. 有兩種方法可用來(lái)測量巖芯的滲透率。
- The permeability of saline soils is studied in laboratory. 摘要對含鹽土的滲透系數進(jìn)行了室內試驗研究。
- They drilled through several layers of rock to reach the oil. 他們鉆透了幾層巖石以尋找石油。
- To increase the vapor permeability of film products. 賦予薄膜制品透氣性。
- Pieces of rock plummeted down the mountainside to the ground below. 巖石一塊塊順著(zhù)山的陡坡滾落到地面。
- A fall of rocks blocked the road. 掉落的巖石把路封住了。
- There are two types of rocks in this area. 這個(gè)地區有兩種類(lèi)型的巖石。
