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activated
相关语句
  活化
    A STUDY ON ACTIVATED SINTERING OF NATURAL MAGNESITE
    菱镁矿活化烧结研究
短句来源
    DETERMINATION OF  ̄(88)Y IN NEUTRON ACTIVATED ROCKS──APPLICATION OF SIMPLEX OPTIMIZATION IN SPECTROPHOTOMETRIC ANALYSIS
    中子活化岩石样品中~(88)Y含量的测定─—单纯形优化比色条件的应用
短句来源
    A Study on the Desorption Kinetics of CO_2 from Hot Activated Na_2CO_3 Stripping Liquid
    胺活化热碳酸钠吸收液解吸CO_2动力学研究
短句来源
    Research on the Concept of Activated Energy in Chemical Reactions
    化学反应活化能概念的探讨
短句来源
    Covalently Immobilization of Methylomonas Z201 Cells on Glutaraldehyde Activated DEAE Cellulose
    Methylomonas Z201 细胞在戊二醛活化DEAE纤维素上的共价固定化
短句来源
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  激活
    Mn~(2+)activated 60ZnO-nB_2O_3-mSiO_2(ZBS:Mn)and(60-x)ZnO-20B_2O_3-20SiO_2-x Al_2O_3 glasses were prepared under air atmosphere.
    在空气气氛下分别制备了一系列Mn~(2+)离子激活60ZnO-nB_2O_3-mSiO_2玻璃和(60-x)ZnO-20B_2O_3-20SiO_2-xAl_2O_3玻璃。
    MECHANICALLY ACTIVATED SLAG CEMENT
    机械激活矿渣水泥
短句来源
    The results show that the oxidation of boron carbide begins at about 60 0℃ ,after oxidization , the boron cabide partially transformed into amorphous boron oxide,the oxidization is a thermally activated process,the activation energy Q =17.17k J/ mol.
    结果表明 :碳化硼在 6 0 0℃左右开始氧化 ,氧化后部分生成玻璃态的B2 O3,氧化过程为热激活过程 ,激活能 Q=17.17k J/ mol
短句来源
    EXPERIMENTAL RESEARCH ON RARE EARTH ACTIVATED ANTIBA CTERIAL COMPOSITE CERAMIC FILTER CARTRIDGE
    稀土激活复合抗菌陶瓷滤芯的试验研究
短句来源
    The effect of activated radiation wavelength,its intensity and sample thickness onthe characteristics of photochromic glasses containing silver halide has been studied.
    研究了激活光波长、强度和试样厚度对AgX光色玻璃特性的影响。
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  “activated”译为未确定词的双语例句
    The Calculation of Pore Distribution of Activated Carbon
    微型计算机用于活性炭孔隙分布的计算
短句来源
    MEASUREMENT OF OVERALL MASS TRANSFER COEFFICIENT AND STUDY ON KINETICS OF MODIFIED ACTIVATED CARBON FOR ADSORBATE H_2S
    改性活性炭吸附H_2S总传质系数的测定及动力学研究
短句来源
    DETERMINATION OF TRACE MERCURY IN POTABLE WATER SAMPLE ENRICHED BY ACTIVATED CARBON WITH COLD-VAPOR ATOMIC ABSORPTION SPECTROMETRY
    用冷原子吸收法测定活性炭富集后的饮水中痕量汞
短句来源
    Heterogenization of Heteropoly Acids on the Activated Carbon Ⅲ. Adsorption of Dodecatungstosilicic Acid(SiW(12))on Adivated Carbons in Acid Medium
    杂多酸在活性炭上的固载化Ⅲ.活性炭在酸性介质中对钨硅杂多酸(SiW_(12))的吸附
短句来源
    Adsorption of Gold by Activated Carbon and Its Desorption with Microwave Technique
    金离子的活性炭吸附及微波解吸
短句来源
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  activated
In this paper, survey of the key contents on this subject, focusing on the most well-known models based on kernel substitution, namely SVM, as well as the activated fields at present and the development tendency, is presented.
      
Adsorption of reactive brilliant red K-2BP on activated carbon developed from sewage sludge
      
Activated carbon was prepared from the sewage sludge of municipal wastewater treatment plant by chemical activation (activation reagent is ZnCl2) and was used for the adsorption of dye (reactive brilliant red K-2BP).
      
The results indicated that the activated carbon developed from sewage sludge (ACSS), which was mesoporous, possessed opened porous structures.
      
euphratica rapidly activated antioxidant enzymes after the onset of salt stress, which might reduce the accumulation of reactive oxygen species and the subsequent acceleration of lipid peroxide.
      
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The selective floatation of beryl, especially its separation from spodumenite,has been investigated. For floatation of beryl and separation from gangue mineralsin alkaline medium, the reasonable adjustment between the activating factor, Ca~(2+),and the depressing factors, such as CO_3~(2-) etc., was ascertained. Thus, the unfavour-able effects of "unavoidable ions" in slurry and in hard water on floatationwere remarkably eliminated. As a result, it is developed a "flow-sheet of selectivefloatation of beryl...

The selective floatation of beryl, especially its separation from spodumenite,has been investigated. For floatation of beryl and separation from gangue mineralsin alkaline medium, the reasonable adjustment between the activating factor, Ca~(2+),and the depressing factors, such as CO_3~(2-) etc., was ascertained. Thus, the unfavour-able effects of "unavoidable ions" in slurry and in hard water on floatationwere remarkably eliminated. As a result, it is developed a "flow-sheet of selectivefloatation of beryl and its separation from spodumenite" which is entirely possibleto floate beryl or spodumenite and even their complex ores with various naturalwaters. This seems to be advantageous to no washing for deslime or other specialtreatments, easy supply of reagents, less expansive, as well as simple, adaptableand flexible operation. Commercial tests verified that beryl concentrate assaying9.2-10.8% BeO with recovery of 88-80% has been yielded from ore containing 0.3%BeO, and also that beryl or spodumenite concentrate assaying 8.5% BeO or 6.0%Li_2O with recovery of 69% or 88% respectively from a complex ore containing0.055% BeO and 0.93% Li_2O. The flow-sheet has been carried into industrial millswith great success.

本文探明了在碱性介质中绿柱石和脉石矿物的主要活化因素Ca~(2+)与抑制因素CO_3~(2-)的关系,克服了矿泥及硬水中“难免离子”对浮选的不良影响,从而制定了能在不同的天然河水中浮选各种绿柱石或锂辉石矿石及其复合矿石的流程.全部过程无脱泥洗矿或特殊处理,药剂来源容易,价格便宜,流程简单,适应性强,灵活性大. 工业试验证明:采用该流程选别含0.3%BeO的绿柱石矿石,可得含9.2—10.8%BeO的铍精矿,回收率88—80%;选别含0.055%BeO和0.93%Li_2O的绿柱石-锂辉石复合矿石,可分别获得铍精矿品位8.5%BeO,回收率69%,锂精矿品位6.0%Li_2O,回收率88%,现已成功地应用于选厂生产实践.

The sintering behavior of natural magnesite and its derivatives M-I(calcined).M-H(calcined and hydrated), M-Ⅱ (calcined, hydrated and again dehydrated) and M-CF (2%Fe_2O_3 doped) in three stages was investigated.In the initial stage, the sintering mechanismof M-I, M-Ⅱ and M-H was deduced and the apparent activation energy calculated.As forthe intermediate stage,the densification behavior of M-I and M-Ⅱ was discussed andanalyzed,and the liquid formation temperature was determined.At last, change of theporosity...

The sintering behavior of natural magnesite and its derivatives M-I(calcined).M-H(calcined and hydrated), M-Ⅱ (calcined, hydrated and again dehydrated) and M-CF (2%Fe_2O_3 doped) in three stages was investigated.In the initial stage, the sintering mechanismof M-I, M-Ⅱ and M-H was deduced and the apparent activation energy calculated.As forthe intermediate stage,the densification behavior of M-I and M-Ⅱ was discussed andanalyzed,and the liquid formation temperature was determined.At last, change of theporosity in the final stage and the densification and grain growth during the entire sin-tering process were discussed. It is found that, (1) M-I, M- Ⅱ and M-H are much more susceptible to sintering thantheir precursor M-C,showing that the 2-step sintering prevails over the 1-step method;calcinasion and hydration after calcination are the effective measures for lowering thesintering temperature of magnesite.(2) The densification of activated calcination specimensproceeds much more rapidly at low and medium temperatures (up to 1400℃) than at highertemperatures,which is a significant characteristic of the 2-step sintering process.

研究了菱镁矿(M-C)及其衍生物 M-Ⅰ(轻烧)、M-H(轻烧-水化)、M-Ⅱ(轻烧-水化-脱水)和M-CF(加 2% Fe_2O_3)在初、中、后期的烧结行为。推断了 M-Ⅰ、M-Ⅱ和M-H的初期烧结机理,计算了活化能;分析了中期阶段 M-Ⅰ和M-Ⅱ的致密化行为,确定了液相形成温度;讨论了后期阶段的气孔率变化以及整个烧结过程的致密化和晶粒长大特征。 实验结果证明:(1)M-Ⅰ、M-Ⅱ和M-H比M-C和M-CF 易烧结。说明二步煅烧比一步煅烧优越,轻烧和轻烧后水化是降低烧结温度的有效措施。Fe_2O_3 的加入对菱镁矿的烧结有一定的促进作用。(2)二步煅烧法的主要特征是低中温(由生坯到1400℃)致密化进行迅速。显气孔率下降份额占整个下降的十之八、九,固相烧结和1350~1400℃形成的初始液相起了重要作用。高温时属液相烧结,主要是晶粒长大,密度的提高不显著。M-Ⅰ、M-Ⅱ和M-H在1600℃已烧结,M-C和M-CF未烧结。

Electroless plating is known to be an autocatalytic process. For the reaction to start,the substrate metal should be either catalytic or activated by a suitable catalyst.For example,steel and nickel can be plated directly, but in the case of copper or brass,catalytic metal inducing is need. In this paper, the catalytic activity of different metals and their inducing effects were investigated by measuring stationary potentials nd stationary potential-time curves. Experimental results showed: (1)The stationary...

Electroless plating is known to be an autocatalytic process. For the reaction to start,the substrate metal should be either catalytic or activated by a suitable catalyst.For example,steel and nickel can be plated directly, but in the case of copper or brass,catalytic metal inducing is need. In this paper, the catalytic activity of different metals and their inducing effects were investigated by measuring stationary potentials nd stationary potential-time curves. Experimental results showed: (1)The stationary potential of metal provides a simple parameter to estimate the catalytic activity of metals in electroless nickeling. When 1-hydroxyethylidenediphosphonic acid (HEDP)aelectroless nickeling bath containing NaH_2PO_2 as reducing agent is used, electroless nickeling may proceed spontaneously, if the stationary potential of metal is more nagative than -0.60V, no matter whether nickel (autocatalytic active) or other metals (non-autocatalytic active) is used as substrate. (2) When an autocatalytic meta is in contact with the substrate metal in the bath, a sudden decrease of stationary potential is observed. The whole inducing process could be finished within 0.5~2 sec. (3) The stationary potential of eleotroless nickeling coating in HEDP bath at 80℃ is -0.72V, consequently nickel coating itself is a catalytic active metal. Once an eleotroless nickeling coating is deposited on a substrate metal, electroless nickeling reaction can then proceed continuously. (4) The sufficient conditions of eleotroless nickeling in HEDP bath containing NaH_2PO_2 are that the stationary potential of substrate metal must be more nagative than -0.60V and that the temperature of electroless nickeling bath should be higher than 50℃. (5) Inducing mechanism of electroless nickeling can be explained with chemical cell consisting of substrate metal and catalytic metal. Electrons from catalytic metal would suddenly decrease the stationary potential of substrate metal, H~+ and Ni~(2+) complex ion would be reduced on the substrate metal surface to metallic H_2 and Ni.

某些金属可以自发进行化学镀镍反应,它们称为“催化活性”金属;而另一些金属必须用“催化活性”金属诱发后才能进行化学镀镍反应。本文用测定稳定电位和稳定电位-时间曲线的方法确定:(1)金属的稳定电位可以作为鉴别金属有无“催化活性”的物理量。在80℃的HEDP化学镀镍液中,稳定电位负于-0.6V者有活性,正者则无。(2)诱发反应的有效性可从基体金属的稳定电位-时间曲线看出。(3)化学镀镍层的稳定电位为-0.72V,它本身具有“催化活性”,基体金属沉积上镍磷镀层后即可连续反应,若无此镍磷镀层,“催化金属”脱离接触后,稳定电位迅即回复为基体金属原来的电位。(4)稳定电位正的金属可用稳定电位负的“催化金属”诱发。诱发时两金属必须在溶液中接触或用外接导线连结。诱发HEDP化学镀镍反应必须同时满足基体金属的稳定电位负于-0.60 V和反应温度高于50℃。(5)诱发反应的机理可用两种金属在溶液中形成化学电池来解释。“催化金属”溶解时释放出的电子通过导线或短路电路流向基体金属,使它的稳定电位迅速负移,并使镍配离子和H~+在它上面放电,析出镍和氢,再进一步促使次亚磷酸钠还原为元素磷,并与镍形成镍磷合金。

 
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