砂粒大小 的英文怎麼說

中文拼音 [shālìdàxiǎo]
砂粒大小 英文
sand particle size
  • 砂 : 名詞（沙子） sand; grit
  • 粒 : 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）
  • 小 : Ⅰ形容詞1 （體積、面積、數量、強度等不大） small; little; petty; minor 2 （年紀小的; 年幼的） youn...
  1. These may range from coarse silt to sand or pebble size.

    這些顆粒的大小變化范圍，從粗粉砂級到砂級或細砂級。
  2. These particles range from coarse silt to sand or pebble size.

    這些顆粒的大小變化范圍是從粗粉砂級到砂級或細砂級。
  3. Setenaly according to the analyses from selected profiles, we know that, it is cold and dry in this region during the early holocene when east asian winter monsoon ' s influence is obvious, so, it is a transition period from sand deposit to sandy soil deposit, when the layers become thinner gradually from north to south. during middle holocene, it is warm and humid, influenced evidently by east asian summer monsoon, so, it is an obivious pedogenesis, when there are generally well - developped holecene palaeosol ( so ) from north to south, and the pedogenesis in the south is better than that in the north, the soil is also thicker than that of the north. from late holocene to now, the climate changes to be dry and cold, but its changing scope is smaller than that of last glacial period

    2 、就所選剖面分析來看，本區在全新世早期氣候回返，相對較寒冷乾燥，東亞冬季風影響較明顯，此時為沙層堆積向砂質土壤過渡，自北至南堆積的沙粒漸細；全新世中期氣候溫暖濕潤，東亞夏季風影響顯著，此時為明顯的成壤期，表現在自北至南普遍可見發育較好的黑壚土層，且南部的成壤作用比北部好，土壤的厚度也要大；全新世晚期至今，氣候向乾冷方向轉化，但變化幅度遠小於末次冰期。
  4. The variations in trace element contents and ratios may hold up a mirror to the lake - level fluctuations and climatic changes, which, in turn, have exerted a direct and important effect on the sequence stratigraphic development. collectively, the reservoir rocks from the yanchang formation consist dominantly of the delta front subfacies subaqueous distributary channel and channel - mouth bar microfacies and delta plain subfacies subaerial distributary channel microfacies fine - grained feldspar sandstones and siltstones. the reservoir rocks have been subjected to three stages of diagenetic and porosity evolution : ( 1 ) the porosity reduction by the mechanical compaction and chemical pressure solution during the early diagenetic stage ; ( 2 ) the porosity increase by the dissolution during the a substage of the late diagenetic stage, and ( 3 ) the porosity reduction by the cementation and filling during the b substage of the late diagenetic stage

    系統的儲層特徵研究表明，該區延長組儲層成因類型主要為三角洲前緣水下分流河道、河口砂壩及三角洲平原水上分流河道微相細粒長石砂巖、粉砂巖；儲層巖石經歷了壓實，膠結，溶蝕等成巖作用，歷經早成巖機械壓實和化學壓溶孔隙縮小期、晚成巖a亞期溶蝕作用孔隙擴大期及晚成巖a亞期（ b亞期）膠結充填孔隙縮小期三個成巖-孔隙演化階段；儲層物性總體上具有較低孔滲、低孔滲的特點，孔隙類型主要為粒間溶孔、殘余粒間孔隙、粒內溶孔、晶間孔及晶間溶孔，裂縫不發育，儲集巖排驅壓力和中值壓力較高，孔隙結構類型以細小孔-微孔隙，微細喉-微喉型為主。
  5. Material composition of the particles according to size, can be divided into beach gravel beach ( pebble beach ), sand beaches and fine sand beaches

    按組成物質顆粒的大小，海灘可分為礫石灘（卵石灘） 、粗砂灘和細砂灘。
  6. 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，粗石英砂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度（ 21l （ m ~ 2 ? s ） ）以便濾料清洗更干凈，採用粒徑范圍為0 . 63 2 . 00mm的粗石英砂濾料，濾層厚82 85cm ，水溫6 27 ，進水濁度為30ntu左右等情況下，能獲得平均濾速為16 18m h 、平均濾后水濁度為1ntu左右、周期達14 24小時的好效果。
  7. Erosive resistance of grey cast iron matrix composite has been investigated, on the condition of different volume fraction of wc and erosive angles and volume fraction of. the results showed that, the erosive resistance of composite with volume fraction of 27 wt % was the best ; volume abrasion rate of composites with different erosive angles was maximum at 50 angle, but volume abrasion rate was less at 0 and 70 angle ; on condition of the same volume fraction of wc and larger size of quartz sand in slurry, volume abrasion rate increased

    結果表明：碳化鎢體積分數為27的灰鐵基復合材料的耐沖蝕磨損性能最佳；不同沖蝕角下復合材料的體積碳化鎢顆粒增強鐵基表面復合材料及其沖蝕磨損性能研究摘要磨損量在50 「沖蝕角處最大，在0 」和70 」沖蝕角處較小；在碳化鎢顆粒體積分數相同的情況下，當漿料中的石英砂粒度大時，其體積磨損量增大。
  8. The results show that, when increasing the feed rate of the grinding wheel, decreasing the rotating speed of the wafer chuck table and using coarser grit grinding wheel, the material removal rate in the wafer rotating grinding increase, the feed rate of the grinding wheel has greater influence on the material removal rate ; when suitably increasing the rotating speed of the grinding wheel, decreasing the feed rate of the grinding wheel and using finer grit grinding wheel, the wafer surface roughness can be reduced ; there exists a critical rotating speed of the grinding wheel ( about 2300rpm ), beyond which the material removal rate evidently decreases and the spindle motor current and wafer surface roughness steeply increase ; when the grit size of the grinding wheel is finer than # 2000, the material removal rate decreases and the wafer surface roughness has no obvious improvement

    研究結果表明，增大砂輪軸向進給速度和減小工件轉速，採用粗粒度砂輪有利於提高磨削矽片的材料去除率，砂輪軸向進給速度對材料去除率的影響最為顯著；適當增大砂輪轉速，減小砂輪軸向進給速度，採用細粒度砂輪可以減小磨削表面粗糙度；在其它條件一定的情況下，砂輪速度超過一定值會導致材料去除率減小，主軸電機電流急劇增大，表面粗糙度變差；採用比# 2000粒度更細的砂輪磨削時，材料去除率減小，矽片表面粗糙度沒有明顯改善。
  9. By analyzing parameters of the model, we find out that shale distribution largely affects water saturation calculated by the model, the less the resistivities of sand grains or clay grains, the more largely the resistivities of grains affect the relation between ct and swt, the effect of m on the relation between ct and swt is increased with swt

    通過對該模型的影響因素分析，發現泥質分佈形式對模型計算的含水飽和度有很大影響；砂巖顆粒或粘土顆粒的電阻率越小，顆粒電阻率對c _ t與sw關系影響越大； m （ m = n ）對c _ t與s _ （ wt ）關系曲線的影響隨s _ （ wt ）的增大而增大。
  10. Experimental study is performed on the mist cooling of heated high temperature surface covered by a sand layer to investigate the effects of both sand size and thickness of sand layer on heat transfer charateristics in order to enhance heat transfer of film boiling region

    摘要研究了高溫金屬面上覆蓋砂層后的噴霧冷卻換熱特性，測試了砂粒顆粒大小和砂層厚度對換熱特性的影響。
  11. This is suitable for automatic packaging particle materials such as sweets, peanuts, nuts seeds, grain, coffee and tea

    適合於糖果、花生、開心果、瓜子、大米、小米、砂糖、雞精、咖啡、種子、茶葉、乾燥劑等顆粒狀物料的自動化包裝。
  12. In this paper, with complete calculation micro - mechanics method, mass concrete was taken as three - phase composites, which consists of mortar matrix, aggregate and bond between matrix and aggregate. with nonlinear finite element method, the simulation of static and dynamic mechanics performance of the uniaxial compress concrete specimen of dongjiang arch dam and simple supported beam specimen of xiao wan arch dam was studied by means of the software of msc. marc. the number of all kinds of mortar matrix was calculated according to grading of aggregate of three graded concrete and walraven function

    本文採用完全細觀計算力學方法，將大體積混凝土在細觀層次上看成是由粗骨料顆粒、硬化水泥砂漿及其二者之間的粘結界面組成的非均質復合材料，採用非線性有限元方法，在對大型商業有限元軟體? msc . marc二次開發的基礎上，對東江拱壩的三級配混凝土軸壓試件、建設中的小灣拱壩三級配混凝土梁試件在靜、動荷載下的力學性能和破壞過程進行了數值模擬。
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