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  single stage
     The technology of FAS single stage bleaching of ONP deinking pulp are investigated,the result show the optimum bleaching conditions are FAS 0.6%,NaOH 0.3%,temperature 65℃,time 30min,pulp consistency 10%. Under these conditions,the brightness of the delignified pulp is 66.6%ISO.
     实验主要探讨了ONP脱墨浆FAS单段漂白的工艺条件,找出了FAS漂白的最佳工艺条件为:FAS用量0.6%,NaOH用量0.3%,漂白温度65℃,漂白时间30min,浆浓10%,在此条件下漂后浆白度达66.6%ISO。
短句来源
     Application of the Single Stage Hydrocracking Catalyst ZHC-02
     ZHC-02单段加氢裂化催化剂的应用
短句来源
     Higher brightness of 52.4%ISO and 57.1%ISO could be obtained when the pulp was further bleached with the H2O2 charges of 2% and 3% under the optimum condition of single stage peroxide bleaching.
     芦苇SCMP浆料用H2O2单段漂白,H2O2用量为2%时,成浆白度达52.4%ISO,裂断长为3.64km,撕裂指数达4.26mN·m2/g; H2O2用量3%时,可漂至57.1%ISO,裂断长为3.79km,撕裂指数达4.38mN·m2/g。
短句来源
     In single stage, the brightness line increases in proportion to H 2O 2 consumption within the limits 4% to 14% and the best ratio of NaOH∶H 2O 2 is 0.14 to 0.29.
     麦草CMP的双氧水单段漂时,NaOH与H2O2的最佳比值为0.14~0.29,当双氧水的用量在4%~14%范围内。 白度的增长呈直线关系
短句来源
     High brightness of 51.3 %(ISO)could be obtained when the pulp was further bleached with 2 % H_2O_2 under the optimum condition of single stage peroxide bleaching.
     芦苇SCMP经H2O2单段漂白,H2O2用量为2.0%(质量分数,以下同)时,成浆白度达51.3%,裂断长为3.81 km,撕裂指数4.6 mN. m2/g。
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  single-stage
     Attempting to get possibility for making town gas in the single-stage reactor from De-Tong coal, it and its coke have been undergone steam catalytic gasification under the pressure of 0.1—4.0 MPa and the temperature of 700—900℃, in which Na_2CO_3 was used as a catalyst.
     为了达到在单段反应器内用大同煤制造城市煤气的可能性,利用这种煤及其煤焦在压力0.1—4.0 MPa和反应温度700—900℃下通过Na_2CO_3作催化剂进行了蒸汽催化气化研究。
短句来源
     COMMERCIAL TRIAL OF A SINGLE-STAGE HYDROCRACKING CATALYST F4402B
     单段加氢裂化催化剂F4402B的工业应用
短句来源
     DTPA displacement chelating pretreatment of eucalyptus CTMP pulp and single-stage H_20_2 displacement bleaching
     蓝桉CTMP浆DTPA置换螯合预处理及H_2O_2单段置换漂白的研究
短句来源
     REACTION PERFORMANCE OF FC - 28 SELECTIVE HYDROCRACKING CATALYST WITH HIGH MIDDLE DISTILLATE FOR SINGLE - STAGE
     FC-28单段高中油选择性加氢裂化催化剂的反应性能
短句来源
     DEVELOPMENT AND APPLICATION OF CATALYST FOR SINGLE-STAGE HYDROCRACKING
     单段加氢裂化催化剂的开发及应用
短句来源
更多       
  single segment
     In the single segment 40Gb/s×16 DWDM, the performance of it is the best on condition that the input optical power , R, Cr, length of SMF, pulse duty cycle is 8-14dBm, 0.99. 0.1, 80-120km, 0.15, respectively.
     在单段40Gb/s 16 信道DWDM 中单通道入纤功率在8~14dBm、色散补偿率在0.99、补偿系数为0.1、单模光纤长度小于120km、脉冲占空比为0.15 时系统传输性能最佳。
短句来源
     A COMPARISON STUDY ON PUMPING CAVITIES IN THE SINGLE SEGMENT AND MULTI ULTI SEGMENT AMPLIFIERSK
     单段与多段阵列式放大器泵浦腔的比较研究
短句来源
     A computational simulation of the single segment Nd∶glass amplifier(SSA) has been made.
     进行了单段钕玻璃激光放大器(SSA)的计算模拟。
短句来源
     Computational Simulation of the Single segment Nd∶glass Glass Amplifier
     单段钕玻璃激光放大器的计算模拟
短句来源
     Extending the distance of single segment unrepeated transmission can decrease the quantity of electric repeaters and optic repeaters among network nodes, there are practical significance for reducing cost of long distance transmission.
     延长单段无中继光传输距离对于减少网络节点间的电中继和光中继,降低长距离传输成本具有很实际的意义。
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更多       
  single section
     It is indicated by the production and calibration results that it is successful for two catalysts in single section to pass through hydrocracking plant in one time with each main index reaching the designed requirements.
     装置的生产运行及标定结果表明:单段双剂串联一次通过加氢工艺是成功的,各主要指标达到了设计要求;
短句来源
     Based on some problems of oversized and undersized particle existing in previous rockgrinding course with single section and open circuit characteristics,a newly developed wetprocess rockgrinding technique with 2 section and closed circuit characteristics,and its application are described,under the indexes: power consumption of 15 kW·h and flocculating agent 50 grams per ton rock,return ratio of(169.85%) and fractional efficiency of 55.55% for 101 ton output each hour.
     介绍云南三环化工股份有限公司为解决湿法单段开路粉磨技术存在的磨不细与过磨细问题而新开发的湿法两段一闭路粉磨技术,及其应用过程中出现的诸多问题,装置转入正常运行后,电耗15 kW. h/t矿,絮凝剂用量50 g/t矿,生产能力为101 t/h时,返砂比为169.85%,分级效率达55.55%。
短句来源

 

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      single stage
    On the basis of an experimental investigation, a new friction model is constructed, which is used for the solution of the problem of the internal ballistics of a single stage powder unit with a piston made of caprolon.
          
    The method allows reduction of the HNO3 concentration from 3.5 to 0.5 M in a single stage.
          
    A procedure was developed for preparing N-benzylacrylamide in quantitative yield in a single stage from acrylonitrile and benzyl alcohol.
          
    The water-vapor sorption capacity of magnetite obtained by precipitation with solutions of NaOH, NH3 · H2O, and urea in a single stage was studied.
          
    The possibility of obtaining distilled water in a single stage by pervaporation from dilute or concentrated aqueous salt solutions was examined for the example of membranes fabricated from celluloses of varied origin (wood, cotton, bacterial).
          
    更多          
      single-stage
    Moreover, a formula to calculate the setting parameters is presented, together with a practical example of its engineering application in superheated steam temperature control with single-stage attemperation in a power plant boiler.
          
    The single-stage synthesis of the conjugates of protein A with silver nanoparticles is performed.
          
    The gold nanoparticles are also obtained under microwave heating with a single-stage reaction of an AuCl4- aqueous solution with sodium sulfide.
          
    At absorpbed dose of 5 MGy the first exothermic peak is shifted by 15-20°C; in this case, both exothermic peaks coalesce and the oxidation can be considered as single-stage process starting at 110°C.
          
    Single-stage chromatographic separation, when realized under optimal conditions, gives the Cm fraction containing 99.5% Cm(III) and 0.6% Am(III), and the Am fraction containing 99.4% Am(III) and 0.5% Cm(III).
          
    更多          
      single segment
    Blood flow density (flow per unit volume tissue) to the ischemic zone was lowest when both coronary segments were occluded, as opposed to occluding either single segment in each heart (0.17±0.03 vs.
          
    Using a small initial number of gradient runs it was possible to optimise isocratic, single segment, or dual segment linear gradient separations.
          
    Sixteen cats received a 5-8 nl injection staining large parts of mainly the ipsilateral grey matter of a single segment.
          
    The condition of 20 trunk segments, typical of the adult, was reached after another 4 stages by the addition of a single segment per stage.
          
    Reassignment of a single segment (segment #3) from the LCX to the LAD territory further improved the model's fit with the anatomic data.
          
    更多          
      single section
    ECG-gated cine MRA was performed with 2D multi-phase fast gradient-recalled echo sequence in a single section.
          
    The branched shape of the mitochondria may lead to the result, that profiles of mitochondria occurring in a single section even at opposite poles of the cell are in fact parts of the same mitochondrion.
          
    Up to twelve microplate-microtubule arrays were observed in a single section of a cell.
          
    thermophilus there are often more than twenty bacteria visible in a single section through a vacuole.
          
    The tomographic sections are gathered by a single section scanning system (Aberdeen Section Scanner).
          
    更多          


    The reaction rates of each individual steps involved in the complex reaction system: were investigated on chromia-alumina, K_2O-Cr_2O_3-Al_2O_3, and Na_2O-Cr_2O_3-Al_2O_3 catalysts with the isotopic kinetic method. The dehydrogenation reaction was carried out at 600℃ with oxidized and reduced catalysts, using butane and butene-C~(14) mixture (volume ratio 1:1), diluted with nitrogen, as the feed. It was shown that the reaction rates would be varied somewhat with different catalysts; meanwhile, r_1 and r_3 on...

    The reaction rates of each individual steps involved in the complex reaction system: were investigated on chromia-alumina, K_2O-Cr_2O_3-Al_2O_3, and Na_2O-Cr_2O_3-Al_2O_3 catalysts with the isotopic kinetic method. The dehydrogenation reaction was carried out at 600℃ with oxidized and reduced catalysts, using butane and butene-C~(14) mixture (volume ratio 1:1), diluted with nitrogen, as the feed. It was shown that the reaction rates would be varied somewhat with different catalysts; meanwhile, r_1 and r_3 on all of the catalysts investigated were significantly greater than r_2, i.e., butane should be considered as dehydrogenated according to the consecutive mechanism. Either started with catalysts of oxidized state or started with those of reduced state, r_1, r_2 and r_3 on K_2O-Cr_2O_3-Al_2O_3 were all greater than those on Cr_2O_3-Al_2O_3 catalysts; whereas the addition of Na to chromiaalumina catalyst causes only a slight increment of r_3 with suppression of r_1. It was seen that for each oxidized catalyst, r_1, r_2, and r_3 were more or less greater than those on the corresponding reduced catalysts.Discussion of the results mentioned above was made and thereafter, the authors suggested some speculations about the adsorbed species of butene and the valency states of dehydrogenation sites of the chromia catalysts.

    在600℃下,以丁烷:C~(14)标记丁烯-1:氮=1∶1∶12(体积比)的混合气体为原料,用示踪动力学方法求得了在铬-铝、钾-铬-铝、钠-铬-铝三种催化剂氧化态和还原态时下图中示出的脱氢反应各单段的反应速度. 结果表明,在所考察的不同催化剂上,虽然各单段的反应速度有明显的政变,但r1和r3都显著地大于r2,这表明丁烷脱氢基本上按串行历程进行.无论是在氧化态还是在还原态下,钾-铬-铝催化剂上的r1,r2和r3均比在铬-铝催化剂上的为高,而钠加入铬-铝中只r3有少许提高,r1却反受到抑制.同一种催化剂在氧化态下各段的反应速度也相应地较还原态下有不同程度的增加. 根据以上结果,还对丁烯的吸附态和脱氢中心的价态作了初步讨论.

    Bleaching experiments on soda-anthraquinone (AP + AQ) and kraft pulps (KP) of E. citriodora have been carried out in the H, H-H, C-E-H, and C-E-H-D sequences. Bleaching properties of kraft pulps of E. Leizhou No.l, E. tsaaulyuh No.2. and E. exserta in the H process have also been tested. Results indicated E. citriodora (AP + AQ) and E. citriodora (KP) both reached a brightness of over 70% (G. E.) , when an active chlorine of 7% and a pulp consistency of 6% were employed under a temperature of 40℃ for three hours...

    Bleaching experiments on soda-anthraquinone (AP + AQ) and kraft pulps (KP) of E. citriodora have been carried out in the H, H-H, C-E-H, and C-E-H-D sequences. Bleaching properties of kraft pulps of E. Leizhou No.l, E. tsaaulyuh No.2. and E. exserta in the H process have also been tested. Results indicated E. citriodora (AP + AQ) and E. citriodora (KP) both reached a brightness of over 70% (G. E.) , when an active chlorine of 7% and a pulp consistency of 6% were employed under a temperature of 40℃ for three hours in the H sequence. The brightness of E. citriodora (AP +AQ) reached over 80% (G. E.) and D. P. above 800 when chlorine of 7% was used in the C-E-H-D sequence. Of the four species of eucalyptus, the bleaching property of E.Leizhou No.l was the best, and E. exserta was found most difficult to bleach. The bleaching property of E. tsaaulyuh No.2 was similar to that of E. citrodora. Physical strengths of the bleached pulps of E. citriodora, E. tsaaulyuh No.2 and Leizhou No.l turned up to be quite good, with a breaking length of 6060-8050M, and a folding strength of 59-413. All these pulps can be used to produce paper for printing purposes or even some finer paper.

    对柠檬桉烧碱—蒽醌浆(AP+AQ)和硫酸盐浆(KP)进行了H单段,H—H两段,C—E—H三段以及C—E—H—D四段漂白试验。对雷林一号桉、草律桉、窿缘桉硫酸盐浆还做了H单段漂白性能的对比试验。结果表明:在用氯量7%、浆浓6%,温度40℃、时间3小时的H单段漂白条件下,柠檬桉(AP+AQ)和柠檬桉(KP)的白度均可达70度以上。采用C—E—H—D四段漂,用氯量为6%,柠檬桉(AP+AQ)的白度超过80度,D.P.在800以上。四种桉树中,雷林一号桉的漂白性能最好,窿缘桉最难漂白,草律桉与柠檬桉的漂白性能相近。柠檬桉、草律桉、雷林一号桉制得的漂白浆,物理强度甚好,裂断长6060—8050米,耐折度59—413次,可以用来生产一般文化用纸,也可考虑用来生产某些高级纸张。

    In this paper a new structure of 4-phase (or bipolar two phase drived) step motor is presented.Theoretically this type of motor belongs to the category of inductor with permaneut magnet,but it has a different structue.The magnet isfixed on stator,and both stator and rotor are with single stack.It has followingadventages:simple in structure.,conveint to magnetize,without axial componentin main magnetic circuit,having plenty of space to arrange the magnet,applicableto small frame motors,particularly convenient...

    In this paper a new structure of 4-phase (or bipolar two phase drived) step motor is presented.Theoretically this type of motor belongs to the category of inductor with permaneut magnet,but it has a different structue.The magnet isfixed on stator,and both stator and rotor are with single stack.It has followingadventages:simple in structure.,conveint to magnetize,without axial componentin main magnetic circuit,having plenty of space to arrange the magnet,applicableto small frame motors,particularly convenient to build a motor with small axialdimention.The static and dynamic performence and parameters of this type of mstor arepresented in this paper.Drived formulas may be used for engineering calculus.Its performance when it is used as lower speed synchronous motor is alsodiscussed.Some prototype motors have been made and have presented good performance.It gives the verification of the analysis in this paper,

    本文介绍感应子式永磁步进电动机的一种新结构,它的永磁体放在定子上,定转子铁芯都是单段的,主磁路没有轴向部份。因此结构紧凑,适合于小机座号电动机采用,可以较方便地设计成轴向尺寸小的感应子式步进电动机。文中对这种结构电动机的静态和动态性能进行了全面的分析,所导出的公式可供工程计算用。同时分析了这种电机作为低速同步电动机运行的问题。最后介绍了样机上的试验结果。

     
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