濾水層 的英文怎麼說
中文拼音 [lǜshuǐcéng]
濾水層
英文
hoggic-
The present work indicates the organic nf membranes and the inorganic nf membranes all have shortages, so develop composite nf membranes that have low cost, mechanically strong and thermally / chemically - resistant, easy to cleanout and good performances is a very important task. in this paper, the preparation of inorganic - organic composite nf membranes were presented. this composite comprise a porous sio2 / al2o3 support substrate, the pore diameters of which ranging from 10 to 15 nm, this inorganic support substrate having a polymer membrane which comprises an polyvinyl alcohol ( pva ) or polyamide ( pa ) densely deposited on at least one of the face surfaces thereof, the structural porosity of such pva and pa membrane ranging from 3 to 5 nm
本論文以開發無機?有機復合納濾膜為出發點,首先在al _ 2o _ 3多孔微濾膜上利用溶膠?凝膠法制備sio _ 2 al _ 2o _ 3無機復合超濾膜作為無機?有機復合納濾膜的基膜;選用聚乙烯醇和聚酰胺為表面功能層材料,分別探討了以羥基丁二酸和磺基水楊酸為混合交聯劑,採用浸塗法制備了聚乙烯醇sio _ 2 ? al _ 2o _ 3復合納濾膜;以均苯二甲酰氯、哌嗪和二胺為單體,採用界面聚合法制備了聚酰胺sio _ 2 ? al _ 2o _ 3復合納濾膜,並對影響膜性能的諸多因素進行系統研究。Combining with practice of china ' s uranium ore heap leac hi ng, this paper proposes main ways and suitable technologies in the fields of emp hasizing feasib ility research, adop - ting strengthened technologies, improving equipment le vel, op timizing control technological factors and developing application range and so o n, which include adopting acid - curring and ferric sulphate - tric kle leaching process, bacteria heap leaching, countercurrent heap leaching, sele cting advanced material of heap bottom, developing large mechanized heap constru ction equipments and methods, popularizing drip i rrigation distributing solution, optimizing heap leaching process parameters, as we ll as developing recovery equipments suited to heap leaching, etc, in order to i n crease leaching rate, reduce heap leaching period and achieve more economic bene fits
結合我國鈾礦堆浸實際,在重視堆浸可行性研究、採用強化堆浸技術、改進堆浸裝備水平、嚴格工藝條件及拓寬堆浸的應用范圍等方面提出一些有效途徑及適用技術,包括採用拌酸熟化-高鐵淋濾浸出、細菌堆浸、制粒堆浸、逆流堆浸,選用優質底墊層材料,研製大型機械化築堆方法和設備,推廣滴灌式布液,優化堆浸工藝參數,以及開發堆浸相配套的回收設備等,以提高浸出率、縮短堆浸周期,獲得更大的經濟效益。It is shown that the effect of pac removing fluoride is closely related to ph value and the optimum range of ph value is between 6. 1 ? 7. 1. under this condition, further studies are made on the optimum coagulant dosage, mixing time, artificial turbidity, filtration rate and filter bed ' s depth and the optimum range of these parameters have been determined
堿式氯化鋁的除氟能力與原水的ph值有密切的關系,除氟最佳ph值范圍為6 . 1 ? 7 . 1 。在此條件下,進一步對最佳投藥量、混合時間、反應時間、人工輔助投加濁度、濾速及濾層厚度進行了研究,確定了其最優的取值。Thus we can explain why the groundwater with high mineralization degree in lu - botan depression - gesso in terrane of the tertiary system is leaching by groundwater
如此,可以解釋鹵泊灘高礦化水的來源? ?地下水溶濾第三系巖層中的石膏等。Strain bl21, and gene expression was induced by iptg. the target proteins were directed into the periplasmic space by the staphylococcal protein a signal sequence preceding the rgd - hirudin gene. using ion exchange chromatography and gel filtration chromatography, the chimera proteins were purified, and both of them showed a single band in tricine - sds - page. the results of activity analysis suggested that these two chimera proteins not only have antithrombin activities, but gain platelet aggregation inhibitory activities as well
通過離子交換層析和凝膠過濾層分別對兩種嵌合體蛋白進行純化,純化產物在tricine - sds - page中都顯示為單一條帶。活性分析結果表明兩種嵌合體蛋白在保留水蛭素抗凝血酶活力的同時,還呈現抗血小板聚集活性。It set up the development of the world recognized high performance nanofiltration composite membrane of aromatic polyamide, on the basis of reviewing the development, the importance in the membrane separation technology, the classification, the fabrication technique and the current development of the research and the application of the nanofiltration membrane. polysulfone was chosen as the material for making the porous substrate because of its excellent compress - to - denseness resistance, its cheap price and its great availability. by fabricating an ultra thin polyamide functional layer on the polysulfone substrate through interfacial polymerization taking piperazine as the monomer in aqueous phase and trimesoyl chloride as the monomer in organic phase, high performance nanofiltration composite membranes of ultra low pressure and ultra high permeating flux were prepared
選擇耐壓密性能優良,價廉易得的聚碸材料為制備復合膜基膜材料,哌嗪為水相單體,均苯三甲酰氯為有機相單體,通過界面聚合反應在基膜表面形成超薄功能層,制備了超低壓高通量聚哌嗪均苯三甲酰胺聚碸納濾復合膜,以0 . 1 mgso _ 4溶液為測試液,所得高脫鹽平板復合膜( )在0 . 4mpa下,脫鹽率為96 . 1 ,通量達85 . 2lDesignning well tube and drill - hole diameter in order to increase thickness of both annular packing gravel and water - resisting clay, nylon net packing around well tube filters, designing filter layer on the boundary between packing gravel and water - resisting clay and ramming the gravel by working the piston into the well after gravel packing completion and the filling clay for salt - water resisting etc. we succeeded in constructing 3 drinking - water wells in minqin county, proved the affectivity and feasibility of using it and giving a certain technical demonstration of construction of drinking - water well in the same similar to this area
通過孔徑與管徑的調配設計,增大環狀粒料層和止水粘土層的厚度;濾水管外包尼龍紗網;粒料與止水粘土接觸界面上設計反濾層;填粒后先行拉活塞利用水力夯實粒料層,再投粘土球止掉上部鹹水等措施,在民勤縣三口人飲水井施工中取得顯著效果,證明了該套成井工藝的有效性和可行性,有望為同類地區人飲水井施工提供技術示範作用。Pdmaema can be cross - linked by quaternization to develop a positively charged dense network structure. according this mechanism, pdmaema / psf positively charged nanofiltration membrane was developed by interfacial polymerization using psf plate macrofiltration membrane as support layer, pre - polymer of pdmaema water solution as coating solution, p - xylylene dichloride / heptane as cross - linking agent
根據這一機理,以psf平板微孔膜為基膜, pdmaema預聚物水溶液為塗層液,以對二氯芐正庚烷溶液為交聯劑,採用界面聚合法制備了pdmaema psf荷正電復合納濾膜。A brief introduction is given to the treatment of the zeya dam foundation, principles of seepage control and design of the concrete face rockfill dam of the zeya reservoir. as for the excavation of the sand - gravel zones, except the toe slab and its 1 / 9 bottom width down stream, the alluvial layers are excavated to the micro - weathered rocks, while the other sections remain unexcavated. regarding to the treatment of the fracture zones, concrete filling is used for the toe slabs and semi - permeable materials are used for other section. according to the construction characteristics, a filter is placed in the down stream embankment foot. to improve the integrity of the dam foundation and anti - seepage capability consolidation grouting and curtain grouting are adopted. as a result safety, economic benefit, convenience in construction and good performace are achieved
簡要論述澤雅水庫面板堆石壩壩基處理和防滲的原則及設計要點.趾板基礎和堆石體各區砂礫石基礎開挖,除趾板與其下游1 / 9底寬范圍以及壩腳挖除沖積層至弱風化(局部微風化)基巖外,其餘部分均予以保留.斷層破碎帶處理,趾板部位採用混凝土塞,其它部位採用半透水料置換,並根據本工程特點在下游壩腳加設了反濾層.為提高壩基的整體性和防滲性能,對趾板進行了固結和帷幕灌漿.達到了安全、經濟、便於施工的目的,運行情況良好,可為面板堆石壩的設計和研究提供參考與借鑒Filter media is the key to the filter and its structure has great effect on effluent and head lost of filtration
濾料層是濾池的核心組成部分,它的結構特性對濾后水水質和過濾水頭損失有著重要的影響。Thanks to its thoughtful design, each of the decks has exclusive outlets, which keeps the soap dry all the time, and it serves other purposes as well
層的器皿擁有貼心的濾水孔設計,能使香皂維持乾燥狀態,卻擁有多樣的功能。This requires evaluating water-bearing formations in their operation as filer plants.
這就要求評價含水層作為過濾裝置的運用。Up - flow filtration with coarse sand media, the water intaking from the bottom layer where the particle diameters of coarse media were the widest and outputting from the surface layer where the particle diameters of coarse media were the thinnest in the single media, was studied theoretically and experimentally in this research. it solved the difficult technical problem of reverse grain filtration
本文對粗石英砂濾料上向流過濾技術進行了理論和實驗研究,在單一的濾層中待濾水循粒徑最粗的底層進,從粒徑最細的表層出,攻克了「反粒度過濾」的關鍵技術。Under these conditions the fibrinolytic activity of the supernatant can reach 820 urokinase units per milliliter broth. ba - dfe was purified from the supernatant of b. amyloiquefaciens dc - 4 culture broth by ammonium sulfate precipitation, ion - exchange chromatography on cm - and deae - sepharose fast flow, hydrophobic interaction chromatography on phenyl sepharose 6 fast flow and gel filtration on sephadex g - 50. the purified enzyme displayed thermophilic, hydrophilic and strong fibrinolytic activity
通過硫酸銨分級沉澱、 cm - sepharosefastflow和deae - sepharosefastflow離子交換層析、 phenylsepharose6fastflow疏水層析和sephadexg - 50凝膠過濾等方法,從解澱粉芽孢桿菌dc - 4的發酵液中分離純化出電泳純的ba - dfe 。The enzyme activity in fermentation liquid could be inhibited by pmsf and dfp. the fermentation liquor also showed good dehairing activity. the alkaline protease ( named dhap, dehairing alkaline protease ) in the fermentation liquid was purified with hydrophobic interaction chromatography, ion exchange and gel filtration
通過cm - sepharosefastflow離子交換層析, deae - sepharosefastflow離子交換層析, sephacryls - 100 , sephacryls - 200凝膠過濾層析,疏水層析等純化步驟對短小芽孢桿菌發酵液中的堿性蛋白酶進行了純化。Standard test method analytical procedure for determining transmissivity and storage coefficient of nonleaky confined aquifers by the modified theis nonequilibrium method
改進的非平衡法測定非越流性有側限的蓄水層過濾系數及儲存系數的標準試驗方法Study on well completion techniques and capacity of screen like qiao type in silt strata
粉砂地層橋式濾水管的成井工藝與出水量研究Apply externally on affected area, rub well for few minutes, apply it once again, cover with cotton gauze, wrap with plastic and adhere well, leave it all night long, clean it with filtered, distilled water or apple cider on the morning after opening the gauze
外塗于病發部位皮膚上,按摩數分鐘,再塗上一層,用棉質紗布包裹,再用保鮮紙包裹,從而保持其濕度,之後再包裹好,經過一整晚后,拆開后再用過濾水、蒸餾水或蘋果醋清洗乾凈。Heat the castor oil to warm, apply externally on affected area, rub well for few minutes, apply it once again, the larger the area the better, cover with cotton gauze, wrap with plastic and adhere well, leave it all night long, clean it with filtered, distilled water or apple cider on the morning after opening the gauze
將蔥麻油加至溫熱,外塗于病發部位皮膚上,按摩數分鐘,再塗上一層,覆蓋范圍愈廣愈好,用棉質紗布包裹,再用保鮮紙包裹,從而保持其濕度,之後再包裹好,經過一整晚后,拆開后再用過濾水、蒸餾水或蘋果醋清洗乾凈。The brine shrimp he was prepared and purified by 67 % ammonium sulfate precipitation, deae - sepharose fast flow ion - exchange chromatography, and sephacryl column gel - filtration, and its biochemical and enzymological properties were identified in this study. it was found that the deduced molecular weight of he in sds - page is about 98. 5 kda, and its proteolytic activity was optimized at ph of 7. 5 - 8. 5 and at temperature of 40, respectively
我們利用67硫酸銨沉澱、 deae - sepharosefastflow陰離子交換柱層析和sephacryl凝膠過濾柱層析,並以酪蛋白為其蛋白酶水解活性的檢測底物、以卵膜為其卵殼裂解活性的特異性底物,從鹵蟲胚胎孵化液中分離純化出了鹵蟲的孵化酶分子,其在sds - page電泳中的分子量約為98 . 5kda 。分享友人