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  80目
     The indium leaching rate of over 90% was achieved at -40+80 mesh crushed particle size of hard -zinc slag, industrial hydrochloric acid concentration of 9.9 mol/L, liquid -solid ratio of 4.0, reaction temperature of 80% and reaction time of 80 min.
     将硬锌渣粉碎至粒度为-40+80目、用9.9 mol/L的工业盐酸浸出时,在液固比为4.0、反应温度为80℃、反应时间为80 min的反应条件下,铟浸出率可达到90%以上。
     The resulted blend, prepared from scrap rubber of 80 mesh in diameter, and scrap rubber/PE = 60/40( mass ratio ) in which PE were compounded at the mass ratio of LLDPE/HDPE = 65/35, and curing agent dosage = 2.0 parts, possessed good moulding and extrusion drocessing properties.
     交联共混条件:废胶粉粒度<80目,PE为 LLDPE/HDPE=65/35(质量比),废胶粉/PE=60/40,硫化剂用量为2.0份。
短句来源
     The adsorption column is made of stainless steel(φ4×240mm)packedwith 60—80 mesh coconut charcoal Ⅱ-2.The CO_2 content in carrier streamsis about 87%.
     使用的检定器是热导池,色谱柱为φ4×240mm 的不锈钢管,柱内装60—80 目椰(二)-2型椰壳活性炭。 载气中 CO_2含量~87%。
短句来源
     Methods:Parathion methyl and parathion methyl were separated on 1m×3mm glass colum packed gas chrom Q(60~80 mesh) coated with 2.7%OV210+4.5%DC550 and determined with ECD.
     方法 :甲基 16 0 5、乙基 16 0 5经内装2 .7% OV - 2 10 +4 .5 % DC- 5 5 0 / Gaschrom Q (6 0~ 80目 )的 1m× 3m m玻璃色谱柱分离后 ,用 ECD测定。
短句来源
     A series of parameters optimized by orthogonal experiment are as follows:temperature is 50℃,size of raw material is 60~80 mesh,ratio of feedstock weight to the volume of solvent is 1∶3.5,extraction time is 40 min,ultrasonic power and frequency is 25 kHz and 300 W respectively.
     优化后的工艺参数为 :提取温度 50℃ ,物料粒径 60~ 80目 ,料液比 1∶3 5 ,超声功率和频率 2 5kHz、30 0W ,提取时间40min。
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     When pH 5.0 to 8.5 and at 25 ℃ to 90 ℃, the weak adsorbance of shale powder (60 to 80 mesh) is 1.15~1 86 mg/g(ds), The physical-chemical adsrbance is 0.99~5.31 mg/g(ds), and the chemical adsorbance is 0.69~4.90 mg/g(ds).
     在 p H为 5 .0 0~ 8.5 0 ,温度在 2 6~ 90℃时 ,60~ 80目的页岩粉末的弱吸附为 1.15~ 1.86mg/g干样 ,可逆吸附为 0 .99~ 5 .3 1mg/g干样 ,不可逆吸附为 0 .69~ 4.90 mg/g干样。
短句来源
     The problem of short working life of core bit because of wearing out of the inner wear-resistant layer can be solved by adding 5% to 8% RVD_2 of 70/80 mesh to strengthen the inner layer or the width of inner layer being 1/3 that of the kerfs.
     在内缘耐磨层中添加5%~8%的RVD2型70/80目的金刚石进行弥散强化,或者将内缘耐磨层宽度设计成钻头宽度的1/3左右,可解决内缘耐磨层过早磨损而使钻头提前失效的问题。
短句来源
     The optimum conditions for extracting total phenols were as below: the blackberry pomace powder with 80 mesh in size was extracted twice by 50% ethanol containing 1% citric acid at 55℃ at the solid-to-solvent ratio of 1∶10 for 15 min. Under these conditions, the yield of total phenols was 93.72%.
     总酚的最佳提取工艺条件是:以80目的黑莓渣粉为原料,用含有1%柠檬酸的50%乙醇溶液为提取剂,在55℃提取2次,每次15min、料液比为1∶10,在此条件下总酚的提取率为93.72%。
短句来源
     Extraction of anthocyanins and polyphenols was optimized for yield. It was found that the maximum yield of anthocyanins of 98.33% was obtained when the blackberry pomace powder with 80 mesh in size was extracted twice by 50% ethanol containing 1% citric acid at 35℃ at the solid-to-solvent ratio of 1∶10 for 30 min.
     从黑莓渣中提取多酚和花色苷的研究结果表明,花色苷的最佳提取工艺条件是:以80目的黑莓渣粉为原料,采用含有1%柠檬酸的50%乙醇溶液为提取剂,在35℃提取2次,每次30min、料液比为1∶10。 花色苷的提取率为98.33%。
短句来源
     The results showed packed column with 2 m by 6 mm outside diameter, packed with TENAX TA 60~80 mesh, has higher sensitive than capillary column with 30 m by 0.32 mm internal dimeter, fixed phase with 5% diphenyl and 95% dimethyl polysiloxane.
     建立了用长 2 m,外径 6mm,固定相为 60~ 80目的TENAX TA的填充柱和长 3 0 m,内径 0 .3 2 mm的 HP5毛细管柱 ,采用非极性 5% diphenyl和 95% dimethylpolysiloxane为固定相。 比较分析结果 ,得出毛细管柱具有比填充柱更高的灵敏度。
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  “80 mesh”译为未确定词的双语例句
     Optimized MAE conditions included 60~80 mesh of guava leaves, 10 mL of ethanol, 80℃ and 10 min.
     优化的微波萃取条件如下:60~80 mesh番石榴叶、10 mL乙醇、80℃和10 min。
短句来源
     Methods: 10% PEG-20M was used as stationary phase, Shimalite W(NAM) 60~80 mesh as supporter and naphthalene as internal standard.
     方法 :以10 %PEG20M为固定相 ,ShimaliteW(NAW)60~80mesh为担体 ,萘为内标。
短句来源
     The optimum process conditions are as follows:catalyst granularity 80 mesh,sulfuric acid concentration 3.6 mol/L for acid extraction,sulfuric acid dosage 325 mL per 100 g of raw material;
     酸浸反应的硫酸浓度3.6mol/L,100g原料中硫酸用量325mL;
短句来源
     A stainless steel column of 1 m×3 mm(i.d) packed with 5% OV 101/Chromosorb W/AW DMCS(60~80 mesh) and flame ionization detector were used at column temperature of 130℃ and injection port and detector temperature of 240℃.
     色谱柱为 5 % OV-1 0 1 /chromosorb W/AW DMCS。
短句来源
     Column A, (ID-3mm, L-2m) was packed, with Porapak Q (50~80 mesh) and operated at 90~190℃ by temperature programmer.
     用内径3mm,长2m的Porapaka Q柱,柱箱采用程序升温技术。
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  mesh
The commercial cake produced during expeller pressing of peanuts was extracted with n-hexane, and 80% ethanol followed by sieving through 80 mesh, to remove residual oil, pigments, bitter taste and fibrous material.
      
The atomized powder was sieved to -80 mesh (>amp;lt;177 μm) size fraction and used in the fabrication of unreinforced "neat" panels via the tape casting process.
      
Insulin was extracted from blood plasma on strong sulfacationic ion-exchange resin, trade mark SDV-3, 60-80 mesh, swelling coefficient 3.0 in hydrogen form.
      
Considering conversion, active site, H2 uptake and the nature and amount of coke, interestingly, the physical mixture of Pt-based catalyst supported on SiO2 with 100-120 mesh and Al2O3 60-80 mesh was similar to Pt-based Al2O3.
      
The volatiles liberated from thermal decomposition were separated by chromatographic packed column (Tenax 60-80 mesh) and detected by mass spectrometry using TG/DTA-GC/MS combined analytical technique.
      
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The present paper treats the compression of a rectangular block between two parallel rough plates as a problem in the theory of plane strain for perfectly plastic-rigid materials.At first, the plastic-rigid theory of plane strain was outlined, then, the solution to the present problem is briefly surveyed. In section 4, the case that is left out in the present literature, viz. when the width-height ratio lies between 1 and 3.64 for partially rough plates is solved. In this treatment, the coefficient of friction...

The present paper treats the compression of a rectangular block between two parallel rough plates as a problem in the theory of plane strain for perfectly plastic-rigid materials.At first, the plastic-rigid theory of plane strain was outlined, then, the solution to the present problem is briefly surveyed. In section 4, the case that is left out in the present literature, viz. when the width-height ratio lies between 1 and 3.64 for partially rough plates is solved. In this treatment, the coefficient of friction ν is considered as constant along the contact surfaces. For eachμ, a critical value of the ratio w0/h is given. When w/hmeshes. The comparison shows that the graphical construction used is accurate for all practical purposes. From these expressions we obtain the analytic expression for wo/h in terms of the frictional angle connected with μ(Eq. 11).Finally, a short discussion on the graphical construction used for the case of constant μ is given in Appendix Ⅱ.

本文将平行刚性压板间的塑性流动问题作为理想刚塑性的平面应变问题处理;先简单的复习理想刚塑性的平面应变问题,然后对本问题已做的部分作简短的介绍,再处理了现在还未解决的情形,那就是:当1

The present paper reports studies on the relative rate of decomposition of nine different oil cake-meals [soybean, peanut, sesame, rape seed, cotton seed(with and without hull), chinese tallow seed (with and without hull)]. In the course of decomposition of the different oil cake-meals, freguent measurement were made of the quantity of evolved CO_2 gas, and amount of the NH_4~+, NO_3~-, and NO_2~- nitrogen formed at the given intervals of the day. These measurement served as indices of the intensity of decomposition...

The present paper reports studies on the relative rate of decomposition of nine different oil cake-meals [soybean, peanut, sesame, rape seed, cotton seed(with and without hull), chinese tallow seed (with and without hull)]. In the course of decomposition of the different oil cake-meals, freguent measurement were made of the quantity of evolved CO_2 gas, and amount of the NH_4~+, NO_3~-, and NO_2~- nitrogen formed at the given intervals of the day. These measurement served as indices of the intensity of decomposition and rate of ammonification and nitrification of the oil cake-meals that may be occur in the soil. These studies were performed in the laboratory, under room temperature condition of the summer season. All cakes were ground into meals to such particle size as to pass through a 20-mesh sieve. The cake-meals were separately mixed with cultivation soil in the proportion of one part of cake-meal to hundred parts by weight of soil. The soil used was of alluvial origin, low in organic matter and somewhat sandy in texture. It was found that decomposition of the cake-meals began soon after their application to the soil. The daily evolution of CO_2 reached its maximum for about one week. Immediately after that, the daily evolution of CO_2 declined rapidly to a such lower level and attained a rather steady declining rate after about two weeks. The trends were common in character irrespective of the kind of the cake-meals. Among the organic constituents of tile cake-meals that underwent into decomposition in the early days, nitrogeneous organic compou ads seemed to be of major importance. The production of ammonium compounds as a result of ammonification followed a trend similar to that shown by the evolution of CO_2. The maximum rate of ammonification was noticed sometime before the evolution of Co_2 had reached a maximum. The positive correlation existing between the total nitrogen content of the oil cakes and the rate of ammonification was evident. Other factors, however seemed to be also affecting the status of transformation of Nitrogen compounds. Nitrate compounds began to appear soon after ammonification had proceeded to an appreciable degree. In the course of decomposition their accumulation in the soil increased steadily with the time. Small amounts of nitrites were found under the experiment conditions which were characterized by low moisture content (25%) of the soil and meal mixtures. From the quantity of the total available nitrogen accumulated at different intervals in the course of decomposition as in the case here given, it seemed that some nitrogen might be lost through volatilization of ammonium compounds, since the soil was alkaline in reaction (the soil here used had a PH value of 7.2) Soaking the cake meals with water, lime-water, or straw-ash extract as sometimes practiced by the local farmers in some districts in Chekiang province brought about the effect of hastening ammonification and nitrification processes. But, gain in readiness of availability of the meals by this hastening effect might not compensate for the loss in total amount of available nitrogen formed. The loss was particularly evident when the cake-meals were pretreated with lime-water or straw-ash extract. It is believed that the alkaline reaction of the treated cake-meals accounts for this loss. The relative readiness of decomposition of the different oil cake-meals followed in descending order: soybean, sesame, peanut, Cotton seed (without hulls)>Cotton seed (with hulls), rape seed>Chinese tallow seed (with and without bulls). Similarly, the relative total amount of available nitrogen (including ammonium and nitrate nitrogen) formed during decomposition shows in the following order: soybean, peanut, sesame, chiness tallow seed(without hulls)>Cotton seed (with and without hulls)>rape seeds>Chiness tallow seed (with hlls).

研究了浙江省施用的九种主要餅肥在土壤中分解的情况,各种餅肥都經磨碎,并通过20孔篩。实驗証明,在夏天的温度下,餅肥施入土壤后即迅速分解,它的分解最盛时期是在一星期左右,此后即迅速下降,到二星期后,即漸趋穩定。餅肥施入土壤后,铵态氮的大量發生是在一星期以內,此后即迅速降低,轉化成硝酸态氮。硝酸态氮在一星期到二星期的时間内开始大量發生,到二星期后就漸趋穩定。土壤中有效态氮总量在各个形态轉化的过程中,有顯著的減少趋势。餅肥在施入土壤前用石灰、草灰或水处理一星期,可提早土壤中有效氮的發生,其中單用水处理的效果尤其好。实驗証明,用石灰或草灰处理餅肥,使有效态氮大量損失,而用水处理則沒有这种情况。在本实驗的条件下,各种餅肥的分解速率依次为:豆餅、芝麻餅、花生餅、棉仁餅>棉籽餅、生菜餅、熟菜餅>桕餅、青餅。各种餅肥中氮素化合物转化后所產生的有效态氮总量依次为:豆餅、花生餅、芝麻餅、青餅>棉仁餅、生菜餅、棉籽餅>熟菜餅>桕餅。

In order to investigate the effect of operating variabls on the yield of aromatics,a certain fraction of a straight run gasoline containing 48.4% (wt.)naphthenes was catalytically converted into aromatics over a bed of 100 ml 14—20 mesh,granular,platforming catalyst under various opera- ting conditions.The ranges of these investigations were:temperature 430— 510℃,pressure 20—50 atm.,WHSV 1.58—6.32 and hydrogen-oil molar ratio 4:1—10:1.The single pass fresh hydrogen process was adopted. The result of data...

In order to investigate the effect of operating variabls on the yield of aromatics,a certain fraction of a straight run gasoline containing 48.4% (wt.)naphthenes was catalytically converted into aromatics over a bed of 100 ml 14—20 mesh,granular,platforming catalyst under various opera- ting conditions.The ranges of these investigations were:temperature 430— 510℃,pressure 20—50 atm.,WHSV 1.58—6.32 and hydrogen-oil molar ratio 4:1—10:1.The single pass fresh hydrogen process was adopted. The result of data treatment implied that the following second-order reaction rate expression correlates the aromatics production rate r with the operating variables satisfactorily. r=r_0(1-bx)~2, where x=aromatics yield based on feed(wt.%),and r_0 and b are constants. Superfacially r_0 may be regarded as the reaction rate constant,whereas b as a stochiometric coefficient of the equivalent kinetic equation.Both are functions of the operating temperature,pressure and hydrogen-oil molar ratio. For 4:1 hydrogen-oil molar ratio,which seems to be one of the most promising operating conditions,the differential and integral forms of the rate equation for aromatics yield are as follows: The apparent activation energy of the aromatics yield reaction by platforming under the conditions investigated,therefore,equals to 33,500 cal/gm-mol.The values of b at isobaric conditions may be correlated as: In b_(50)=8200/RT-17.5/R The significance of b is discussed thermodynamically. Considerable variations,though not large,in aromatic yield were observed when the hydrogen-oil molar ratio changed from 4:1 to 10:1.For example,at 30 atm.,490℃,this effect may be expressed by r=(p/186p+144)×10~5(1-bx)~2, where p=partial pressure of the feed stock,atm. Besides,the relative initial rates of C_8 aromatics,toluene and benzene formation were found to be in the increasing order of their molecular weights.Thus under certain operating conditions the initial rate of C~8 aromatics formation was 2.5 times that of the toluene initial formation rate,and 20 times that of the benzene formation rate.

用直馏汽油的某一馏分在装有100毫升14—20筛眼颗粒形铂重整催化剂的反应设备中,进行单程纯氢操作的铂重整反应条件试验以考察芳烃的生成与反应条件变化的关系.试验的反应条件为:溫度430—510°压力20—50大气压,空间流速1.58—6.32重量/重量/小时,氢油分子比4:1—10:1.处理所获试验数据的结果,发现芳烃生成速度γ可用下列二次反应式来关连:

 
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