permeability number 中文意思是什麼

permeability number 解釋
透氣性值
  • permeability : n. 1. 透過性，可透性，滲透性；滲蝕度；【航空】（氣球氣體的）透出量。2. 【物理學】磁導率，磁導系數（＝magnetic permeability）。
  • number : n 1 數；數字；〈pl 〉算術。2 （汽車等的）號碼；第…，第…卷，第…期〈通常略作 No （復數 Nos ），用於...
  1. With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion

    研究結果表明：通過對rpc各組分摻量變化的研究，可以找到rpc的最優配合比；試件成型后的熱養護制度對rpc的性能影響巨大； rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況，剛纖維的摻入可以大幅改善rpc的韌性； rpc在成型后存在較大的收縮，而其中的化學收縮要遠遠大於乾燥收縮； rpc具有很強的抗氯離子滲透性能，漿體的密實度很高；通過x射線衍射實驗，可以發現rpc的膠凝體中ch晶體已經幾乎不存在，膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成；在抗溶液侵蝕的實驗中，摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件，酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用，但是機理各有不同。
  2. 4. influence of no on microvascular permeability : specimens from postnatal 1 day showed little immunoreactivity for enos. in contrast, blood vessel endothelium and leydig cells and spermatids in postnatal 3 weeks testes were strongly expressed enos. the number of positive blood vessel endothelium, leydig cells and spermatids in postnatal 3 months was conspicuously increased

    飽及枯j代細胞均出現了陽性表達: 3月齡組生精小管靠近若腔的精r細胞出現enos陽性，陽性血管內皮細胞數目增多顯著: 12月到24月齡陽性l陽乍今內皮細胞數i ] 『 . 『增多的趨勢。
  3. In postnatal 12 and ismonths testes, the number of postive cells persistently increased. in 24 months testes, some spermatocytes also displayed strong enos immunoreactivity. from 3 weeks to 3 months, the permeability of microvascular was on the trend of increase while it was on the trend of decrease from 12 months to 24 months. s. biood - testis barrier : the basal lamina of endothelium cells developed from thin, broken and unequal electronic density to thick, full and high electronic density with aging

    （巧1 ; 1 {性農i返_微1111扮通透性從3周齡至3月齡』 l 』增人趨勢， 12月齡到24月齡纖微l陽粉通透性: ，減小趨侖5 .血梁屏障:隨著增齡，毛細血憐內皮細胞的基膜由薄、斷續、電子密度不均逐漸發展為基脫垮、完招、 .毯子密度較高而均勻，厚度逐漸增加。
  4. Aiming at some reservoir characteristics of low porosity, extra - low permeability, low oil saturation, and low productivity as well as shallow depth in changxi area of ansai oilfield, through a large number of laboratory experiments and field tests, some suitable fracturing technology and operation parameters have been optimized, including low temperature fracturing fluids., propping fracture radius 、 pre - liquid and sand - fluid ratio

    摘要針對安塞油田長西區低孔隙度、特低滲透率、低含油飽和度和淺層低產的油藏特性，通過大量室內、現場試驗研究，優選出適合的壓裂施工參數，包括低溫壓裂液、裂縫支撐半徑、前置液和砂液比。
分享友人
分享到 Line

分享到臉書