砂粒粒度范圍 的英文怎麼說

中文拼音 [shāfànwéi]
砂粒粒度范圍 英文
sand particle size range
  • : 名詞(沙子) sand; grit
  • : Ⅰ名 (小圓珠形或小碎塊形物) small particles; grain; granule; pellet Ⅱ量詞(用於粒狀物)
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : 名詞1 [書面語] (模子) pattern; mould; matrix 2 (模範; 榜樣) model; example 3 (范圍) boundar...
  • : Ⅰ動詞1 (四周攔擋起來 使裡外不通; 環繞) enclose; surround; corral 2 (繞; 裹) wrap Ⅱ名詞1 (四...
  • 范圍 : scope; limits; extent; boundary; confines; range; range dimension; spectrum
  1. Pilot - scale experimental results showed that, comparing to conventional gravity filtration, the up - flow filtration has greater capacity in containing removed suspended solid and producing filtrate under the test conditions. coarse media with particle diameter ranging 0. 63 - 2. 00mm were used in order to apply relatively higher backwash rate of 21 l / ( m2. s ) for achieving better media clean - up after a filtration run. under the test conditions, the media thickness ranging 82 - 85 iron, water temperature ranging 6 - 27, and influx turbidity of 30 ntu, it achieved the results of the average filtration rate ranging 16 - 18 m / h, the average effluent turbidity of 1 ntu, and action cycle ranging 14 - 24h

    中試研究結果表明,粗石英濾料上向流過濾比傳統的重力流過濾具有更大的含污能力和產水量,為適用較高的反沖洗強( 21l ( m ~ 2 ? s ) )以便濾料清洗更干凈,採用為0 . 63 2 . 00mm的粗石英濾料,濾層厚82 85cm ,水溫6 27 ,進水濁為30ntu左右等情況下,能獲得平均濾速為16 18m h 、平均濾后水濁為1ntu左右、周期達14 24小時的好效果。
  2. Different from clay soil and sand soil, the particle extent of silty soil is more narrow, so the component design method and construction technology, which is reasonable for clay soil and sand soil may not be effective to silty soil

    粉質土不同於粘性土和性土,其分佈窄,所以適用於粘性土與性土的配合比及施工技術與方法並不就一定適用於粉質土。
  3. This is the direct reason of bad reservoir property of sandstone, especially lower permeability. the influence and control factors of reservoirs include : deposition, diagenesis and tectogenesis. the deposition is the basic factor, it control the shape and distribution of sand body, and influence the type and the intensity of the diagenesis ; the diagenesis is the key factor, it control the process of pore evolvement, so the diagenesis control the sandstone ' s storage space and reservoir quality directly ; the fracture of the tectogenesis formation could improve the porosity and permeability of sandstone

    其中沉積作用是基礎,控制了儲集體的形態特徵和分佈,同時由於不同沉積類型體在碎屑成分組成、泥質含量、顆體厚體內部的非均質性、孔隙介質的物理化學性質等方面不盡相同,從而也影響著巖所經歷的成巖作用路徑、類型和強,因此沉積作用是控制儲層發育的主導因素;成巖作用是關鍵,直接決定了巖的孔隙演化過程,從而決定了儲層內部儲集空間特徵和儲集性能;而構造作用形成的裂縫對改善巖的儲滲性能具有一定作用。
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