特級試劑 的英文怎麼說

中文拼音 [tèjíshìjì]
特級試劑 英文
special grade reagent
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 試 : 名詞（古代占卜用的器具） astrolabe
  • 劑 : Ⅰ名詞1 （藥劑; 制劑） a pharmaceutical or other chemical preparation 2 （某些有化學作用的物品） a...
  • 特級 : special grade [class]; superfine
  • 試劑 : [化學] reagent; agentia; analoids試劑廠 chemical reagent works
  1. This paper unfolds engineering disposition and theoretical research of negative temperature high performance concrete ( nthpc ) with the damage of many factors motivation, the project background based on qing - zang railway engineering, which is one of four - emphasized engineering during the tenth five - plan. due to the difference of environment of construction and service between nthpc and ordinary concrete, and therefore durability of nthpc is required to higher level. at a first, nthpc must avoid frozen damage at early age and possess anti - freezing property at later period, in order to meet engineering practicable application need, and this are two emphasized and difficult problems, as for nthpc ; by means of mechanism analysis about deicing - agent ingredient and anti - freezing at early period, adopting composite technique routine of mineral addition + anti - freezing element + water - reducer4 - air - entraining + anti - erosion of steel component etc, based on orthogonal experimental approach, fd - 1 composite functional admixtu re was manufactured, which has more property and orientation on qing - zang railway

    負溫混凝土由於和普通混凝土在施工環境及服役環境上存在的差異，因此表現為比普通混凝土更為較高的耐久性要求；負溫混凝土首先要避免早期的凍害以及具備長期抗凍性能，才能夠滿足工程實際應用的要求，這也是負溫混凝土必須解決的兩大技術關鍵；通過對目前常用防凍劑組分作用機理的分析研究及混凝土早期防凍機理探討，採用礦物外加劑+防凍組分+高效減水劑+引氣+阻銹組分功能復合的技術路線，通過正交試驗設計復配了適應青藏鐵路工程要求的專用多功能復合型外加劑fd - 1 ；並在此基礎上配製不同等級負溫高性能混凝土，開展一系列包括硫酸鹽侵蝕、氯離子滲透、抗凍融循環、收縮及耐磨性等耐久性能研究；通過對fd - 1組分和摻量的調整，優化負溫混凝土在施工特性、力學指標和耐久性三個方面的兼容、協調性。
  2. Abstract : the primary treatment of wastewater could be strengthened by pretreatment of physico - chemical process and a pilot plant research was conducted to treat the combined wastewater in shanghai

    文摘:介紹了污水物化法強化一級處理的特點及用於上海合流污水的中試研究，分析了單獨投加鐵鹽、鋁鹽以及它們同有機高分子絮凝劑復配使用的處理效果。
  3. Nuclear particle track - etched anti - counterfeit marking is a new weapon against fake products. the mark is manufactured by intricate high technology in state - controlled sensitive nuclear facilities which ensures that the mark can not be copied. the pattern of the mark is characterized by its permeability, and can be distinguished from fakes by using a transparent liquid ( e. g. water ), colored pen or chemical reagent. the technique has passed the official health safety examination and poses no danger of nuclear irradiation

    用核粒子照射塑料薄膜形成徑跡，再經化學試劑蝕刻和成像技術，得到由微米級微孔組成的圖案.這種圖案具有物質透過特性.用這種方法生產的核徑跡防偽標志，具備核尖端技術不易擴散，製作設備不易得到，產品用其他方法難以偽造，防偽識別簡單、快速、可靠等特點.此種標志已經通過放射性安全檢測，可以用於各種商品（包括食品）的包裝
  4. Solid astra luoyang fire of anti - corrosion materials engineering limited, founded in 1993, is the collection of china ' s famous anti - corrosion materials research and production and fire at the scene for the construction of an integrated enterprise, in addition to fire anti - corrosion coating production, but also professional cathodic protection system for the production of various sacrificial anode and supporting materials, products including magnesium - based, zinc - based, aluminum sacrificial anodes, with magnesium, magnesium rod, with zinc, titanium / mixed metal oxide anode zone, a titanium, astm265, high silicon anode cast iron, steel or cement testing poles, various reference electrode welding mode and flux, mandatory current cathodic protection act by magnetic saturation potentiostatic yee

    洛陽固雅特種防腐防火材料工程有限公司成立於1993年，是國內著名的集防腐防火材料科研生產和現場施工為一體的綜合性企業，除生產防腐防火塗料外，還專業生產陰極保護系統所需的各種犧牲陽極和輔助材料，產品包括鎂基、鋅基、鋁基犧牲陽極、鎂帶、鎂棒、鋅帶、鈦/混合金屬氧化物陽極帶、一級鈦、 astm265 ，高硅鑄鐵陽極、鋼制或水泥測試樁，各類參比電極、焊模和焊劑，強制電流法陰極保護用磁飽和恆電位儀等。
  5. In this paper. flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is studied. according to characteristic analysis, the model of completely mixing reactor in series is introduced to characterize real reactor as a theoretical model. on the basis of analog computing analysis and discussion of theoretical model. by means of pulse tracer method, experiments on residence time distribution ( rtd ) have been done in different conditions including the change of tracer level, feeding flow rate and circulation flow rate. the result shows when the ratio of circulation flow rate and feeding flow rate amounts to at least 4, the flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is very close to the model of completely mixing reactor in series. an amendatory model has been established by the regression method

    作者首先在對反應器進行特徵分析的基礎上，建立了描述中試規模多級外循環流化床生物反應器流動特性的串級全混流模型，並對理論模型進行了模擬計算分析和討論，在此基礎上，作者分別在無循環和有循環（改變示蹤劑用量、流加流量和循環流量）的條件下，利用脈沖示蹤法對一到五級串聯外循環流化床反應器進行了停留時間分佈實驗，結果表明，在循環流量與流加流量的比值達到大於等於4時，中試規模多級外循環流化床反應器的流動特性接近串級全混流模型，通過數據回歸擬合的方法，建立了中試規模一到五級串聯外循環流化床反應器的流動模型。
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