重力篩分作用 的英文怎麼說

中文拼音 [zhònglìshāifēnzuòyòng]
重力篩分作用 英文
gravitational screening
  • 重 : 重Ⅰ名詞（重量; 分量） weight Ⅱ動詞（重視） lay [place put] stress on; place value upon; attach im...
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 篩 : 名詞[書面語] （植物名） sedge
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 重力 : [力學] gravity; force of gravity; gravity force; power of gravity; pull of gravity; gravitational...
  1. Water shutoff agent dsz - a is composed of inorganic particle. its specialities are low cost, easily flow, high strength and long valid period. the agent suits non - selective water shutoff in sand formation. dsz - a not only can plug high water - bearing formation, but also can plug case leakage. dsz - a has been applied on site and gotten good effect. it is a agent which has wide prospect

    井下護泵除砂裝置主要用於產液氣量高，出砂能力大，利用常規裝置、常規方法很難治理的井.它的設計是建立在丟手封隔器卡封的基礎上，將液體攜砂能力由地層進入泵管轉變為先過濾（雙層激光割縫篩管部分） ，再在除砂器內靜態沉澱、由單流閥排入井底等一系列除砂護泵優點.本文著重介紹了井下護泵除砂裝置的工作原理與應用情況
  2. On the basis of the study of the theory and appraise method on land use in the small towns from home and abroad, this paper at first conducts a deep study on the development and role of the small towns, indicating that its development has sawn an uneven development phrase and becomes a carrier of the enterprises, a pool of surplus laborers, a hub of material exchanges between the rural and urban areas, a base of spiritual civilization, an important way to achieve urbanization. second, it conducts a study on the situation and features and the problems the land use, indicating that the efficiency of the land use is low, which has a direct influence on the development of agriculture and the role of the small towns. and the study of the demand of the land indicates the shortage of land is serious, and the small town must rationally use the land and increases its intensive role and the economical efficiency to meet the demand

    在分析國內外已有關于小城鎮土地利用的理論與評價方法的基礎上，首先對小城鎮在我國的發展、地位和作用進行了深入的分析，判明我國小城鎮發展經歷了一個曲折向上的發展階段，已成為鄉鎮企業的載體，農村剩餘勞動力的蓄水池，城鄉物資交流的樞紐，農村精神文明的基地，是我國城市化的重要途徑；其次，對小城鎮土地資源利用現狀和特徵進行了探討，並對發展小城鎮建設導致的土地利用問題進行了剖析，表明目前我國大多數小城鎮土地效益和規模效益低下，佔用耕地過多，直接影響農業的發展，影響小城鎮的地位和作用；通過小城鎮土地供需分析研究表明，我國土地短缺十分嚴峻，小城鎮土地需求缺口較大，小城鎮必須合理利用現有土地，增強集約功能和土地經濟效益，從而緩解需求壓力；最後，論文通過運用特爾菲法，描述統計分析法、多元統計分析（主成分分析）法和系統分析法中的層次分析法（ ahp ）等一系列方法，結合定性和定量兩方面，從土地質量、土地資源數量與結構、土地經濟效益、環境效益、社會效益等五個方面進行分析，篩選、建立了土地資源利用評價指標體系，在因子評價的基礎上，建立了土地利用綜合評價模型，並給出了評價過程和方法。
  3. Circular movement, suitable for classifying in coal preparation, ore dressing, building material, power and chemical industries, altogether40 specifications, heavy duty serene for large particle materials

    本系列振動篩為圓運動。可供選煤、選礦、建材、電力及化工部門等作產品分級用。本系列振動篩共有四十種規格、其中重型篩供大粒度物料分級。
  4. This study we acquired the coding region of hcv ns5b gene by pcr of hcv full length genome and construct the recombinant plasmid pegep n3 - ns5b ; with the different concentration of g418 in the culture medium, we think the selection concentration of g418 for hepg2 cell is 800 g / ml ; the recombinant plasmid was transfected into hepg2 cell by lipofectamine2000 cells containing stable transformants were selected by the ability of resistance to g418 and isolated with the limited dilution. the stably transfected cell line expressing ns5b - egfp fusion protein was obtained by the detection under fluorescence microscope and rt - pcr

    本研究首先從hcv基因組中擴增出nssb基因，構建了nssb基因與報告分子egfp （增強型綠色熒光蛋白）基因的融合基因真核表達質粒pegfpn30 ；通過含有不同g418濃度梯度的培養液培養hepgz細胞，確定了篩選用g4181作濃度為800pg ml ；利用脂質體法將該重組質粒轉染hepgz細胞，經過有限稀釋法和g4壓力選擇，應用熒光顯微鏡和rtpcr檢測，獲得可穩定表達nssbegfp融合蛋白的hepgz細胞克隆。
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