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次序
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  order
     AN EXTENSION OF MARTIN-GROSSE THEOREM ON THE ORDER OF LEVELS
     Martin-Grosse能级次序定理的推广
短句来源
     STRONG APPROXIMATION FOR LINEAR FUNCTION OF ORDER STATISTICS
     次序统计量线性函数的强逼近
短句来源
     Distribution of the Linear Combination of Order Statistics and Its Application in Reliability Statistics
     次序统计量线性组合之分布及其在可靠性统计中的应用
短句来源
     Programming in C Language:Order of Functions and Initialization of Variables
     C程序设计—函数的次序与变量的初值
短句来源
     CONDITIONS OF DECIDING ADJACENT TWO SPARES ORDER FOR A KIND OF SEQUENCING PROBLEMS
     一类计划排序问题确定相邻两零件次序的条件
短句来源
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  sequence
     (3) The sequence of toxicity is 5 ×10-6Cu2+/50 ×10-6Zn2+>2. 5 ×10-6Cu2+/25 × 10-6Zn2+>5 × 10-6Cu2+ >50 × 10-6Zn2+ (V/V).
     (3)毒性次序:5×10-6Cu2+/50×10-6Zn2+>2.5×10-6Cu2+/25×10-6Zn2+>5×10-6Cu2+>50×10-6Zn2+(V/V)。
短句来源
     It was found that the reaction rates of UF6 + HX increased with the sequence from HCl to HI, forexample, the rate constants were 2.32 × 10-6,6. 43×10-4 and 5.89 × 10-3s-1·Pa-1 at room temperature, respectively.
     结果显示,UF_6+HX反应速率随HCl-HBr-HI次序增加,在室温下它们的反应速率常数分别为2.32 ×10~(-6),6. 43×10~(-4)和 5.89×10~(-3)s~(-1)·Pa~(-1).
短句来源
     Results The electrode displays an anti-Hofmeister selectivity sequence:I~->SCN~->ClO_4~->Br~->NO_2~->NO_3~->Cl~->SO_4~(2-).
     结果该电极对碘离子(I-)呈现出反Hofmeister选择性行为,其选择性次序为:I->SCN->ClO4->Br->NO2->NO3->Cl->SO42-。
短句来源
     Compared with the exchange system RHSO4-SO2 4-, the sequence of selectivity is as follows: HSO-4> SO2 4-CO2 3->HCO-3. The problem about the conversion of dibasic acid radicals in the resin phase is also discussed.
     和RHSO_4-SO_4~(2-)交换体系对比,明确了选择性次序为:HSO_4~->SO_4~(2-)>>CO_3~(2-)>HCO_3~-,还对二元酸根在树脂内的转化作了讨论。
短句来源
     Solubility sequence of As and Se of fly ash in six solvents is: 0.07MHCL>solution B(pH3.5)> solution A(pH5.5) >>0.5M acetic acid >alkaline solulion (pH8.5) >distilled water.
     六种深提剂对飞灰中砷、硒的深解能力次序为:0.07MHCl>B溶液(pH3.5)>A溶液(pH5.5)>>0.5M乙酸>碱性溶液(pH8.5)>蒸馏水。
短句来源
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  ability order
     The results show that all the three surfactants can effect on the system and the active ability order is 3 #>1 #>2 #.
     结果表明 ,这 3种表面活性剂对该体系均有活化作用 ,活性次序为 3 # >1 # >2 # ;
短句来源
     But the ability of the arum is the most, and the ability order is the arum, the green cirrus, the tiger line orchis , the big green cirrus, the bamboo, the cinnamon.
     海芋吸收甲醛的能力最强,强弱次序依次为海芋、绿萝、虎尾兰、绿宝石、肉桂和佛肚竹。
短句来源
  “次序”译为未确定词的双语例句
     HOMA-IR 2.13±0.62 4.11±1.69 2.78±0.67 6.16±3.33,non-obese-NGT
     HOMA-IR分别为:2.13±0.62、4.11±1.69、2.78±0.67、6.16±3.33,各组次序依次为NGT非肥胖组
短句来源
     The contents of hydronium were HCO_3~->Ca~(2+)>Cl~->Mg~(2+)>Na~(+s)+K~+ in water.
     水中离子含量高低次序为HCO_3~->Ca~(2+)>Cl~->Mg~2>Na~(?) +K~+。
短句来源
     The incubation period of LDL oxidize reaction is:P2>BHT>P12≈P11>Control. Their oxidize restrain rate to DPPH is:P2=52.5 %,P11=37.8 %,P12=39.0 %,BHT=42.6 %,respectively.
     3种黄酮单体的LDL氧化反应潜伏期大小次序为:P2>BHT>P12≈P11>Control,对DPPH自由基的氧化抑制率分别为:P2=52.5%,P11=37.8%,P12=39.0%,BHT=42.6%。
短句来源
     The contents of hydronium were HCO- 3> Ca 2+>Cl->Na +s+K+>Mg 2+in water.
     水中离子含量高低次序为HCO-3 >Ca2 +>Cl- >Na+s+K+>Mg2 +。
短句来源
     The experimentsl salting-out orders are as follows:K_2SO_4>Na_2Co_3>CaCl_2>NaCl>KCl.
     盐析次序大致为K_2SO_4>Na_2CO_3>CaCl_2>NaCl>KCl.
短句来源
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  order
Xi defined a partition ofWf into canonical right cells and the right order ≤R on the set of cells.
      
The cohomology algebra of the classifying space of a compact Lie group admits the structure of ann-Hopf algebra, wheren is the order of the Weyl group; the homology with dual structure is also ann-Hopf algebra.
      
This is true regardless of the characteristic of the field or of the order of the parameterq in the definition ofHn.
      
An order-reversing duality map for conjugacy classes in Lusztig's canonical quotient
      
We define a partial order on the set No,c of pairs (O,C), where O is a nilpotent orbit and C is a conjugacy class in A(O), Lusztig's canonical quotient of A(O).
      
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  sequence
We shall construct a generating set of a nonfinitely generated Ga-invariant ring given in Freudenburg's counterexample by making use of an integral sequence which was constructed inductively by Freudenburg.
      
The classical Rudin-Shapiro construction produces a sequence of polynomials
      
A Generalized Sampling Theorem with the Inverse of an Arbitrary Square Summable Sequence as Sampling Points
      
In this article a generalized sampling theorem using an arbitrary sequence of sampling points is derived.
      
The mathematical concept of frames is utilized in the analysis of the properties of the sequence of sampling functions.
      
更多          
  ability order
The results indicated that the Fe-reducing ability order of different extracts was different with that of DPPH scavenging ability.
      


1.Homo-ionic colloidal clays (Mg-clay>H-clay>Be-clay>NH4-clay>K-clay>Na-clay. 3.The collcidal clays from yellow earth having lower SiO_2/R_2O_3 ratios fix more phosphate than that from purple brown...

1.Homo-ionic colloidal clays (Mg-clay>H-clay>Be-clay>NH4-clay>K-clay>Na-clay. 3.The collcidal clays from yellow earth having lower SiO_2/R_2O_3 ratios fix more phosphate than that from purple brown soil. 4.The phosphate fixation power of H-clay is markedly reduced after the removal of free irn and aluminum oxides. 5.In Ca-clay,the fixed phosphate was unstable.The association of phosphate with the exchangeable calcium is easily liberated by a very dilute acid solution.

土壤中磷酸固定作用每受外界环境之影响而有很大差异,如粘土矿物的种类,土壤反应,代换性盐基等,黏土矿物与土壤反应对于磷酸固定前,人已有较详细之报告,本文特重视代换性盐基之种类对于磷酸固定之关系。本试验以紫色土与黄壤为代表,均取于北碚。紫色土系发育于白垩纪自流井层紫色页岩,属中性而无石灰性反应,pH=7.0,黄壤系自侏罗纪灰色砂岩风化者,心土微红,pH=4.5—5.0,为避免过高之有机质,均采取心土,按照 Stoke 氏定律提取5微米(micron)直径之黏土粒,晒干后,分别以 N NaCl,N KGl,N NH_4Cl,N MgCl_2,N BaCl_2及 pH=3 HCl 处理,然后再以90%酒精洗涤至无氯为止,总之以不变更胶体之构造为原则,经处理之黏土,先分析其中之代换性盐基以及盐基代换总量,然后再测定其磷酸固定量,在酸性反应如 H~-黏土,其磷酸固定之主要因子为水化铁及水化铝,故再以 pH=2之盐酸淋洗,除去其中游离铁铝,再测定其磷酸固定量以资比较。按分析结果,黄壤胶体(<2 micron)中之(SiO_2)/(R_2O_3)为2.19,紫色土为2.56,前者盐基代换总量每百克黏土粒(<5 micron)...

土壤中磷酸固定作用每受外界环境之影响而有很大差异,如粘土矿物的种类,土壤反应,代换性盐基等,黏土矿物与土壤反应对于磷酸固定前,人已有较详细之报告,本文特重视代换性盐基之种类对于磷酸固定之关系。本试验以紫色土与黄壤为代表,均取于北碚。紫色土系发育于白垩纪自流井层紫色页岩,属中性而无石灰性反应,pH=7.0,黄壤系自侏罗纪灰色砂岩风化者,心土微红,pH=4.5—5.0,为避免过高之有机质,均采取心土,按照 Stoke 氏定律提取5微米(micron)直径之黏土粒,晒干后,分别以 N NaCl,N KGl,N NH_4Cl,N MgCl_2,N BaCl_2及 pH=3 HCl 处理,然后再以90%酒精洗涤至无氯为止,总之以不变更胶体之构造为原则,经处理之黏土,先分析其中之代换性盐基以及盐基代换总量,然后再测定其磷酸固定量,在酸性反应如 H~-黏土,其磷酸固定之主要因子为水化铁及水化铝,故再以 pH=2之盐酸淋洗,除去其中游离铁铝,再测定其磷酸固定量以资比较。按分析结果,黄壤胶体(<2 micron)中之(SiO_2)/(R_2O_3)为2.19,紫色土为2.56,前者盐基代换总量每百克黏土粒(<5 micron)为18m.e.后背为30m.e.,兹将试验所得结果归纳如次: 1.磷酸固定量每因土壤胶体之不同而有差异,由黄壤所提取之黏土其磷酸固定量亦较紫色土为高。 2.土壤之磷酸固定量,非特因土壤胶体之不同而有差异,即或同一黏土,其磷酸固定量亦因其代换性盐基之不同而有差异,概言之,钠黏土之磷酸固定量为最小,钾黏土次之钡、铵黏土又次之,而以钙黏土为最大,其磷酸固定次序为: Ca-黏土>Mg-黏土>H-黏土>B(?)-黏土>NH_4-黏土>K-黏土>Na 黏土 3.各种不同代换性盐基的粘土,加磷酸溶液后,其反应亦各不相同,H~-黏土之 pH 值为3.2—4.5,因其酸度较高,溶液中之游离铁与游离铝含量较多,是故磷酸固定量亦较高,如以淡盐酸(pH=2)洗涤,除去其中游离铁铝后,其磷酸固定量则大为减少,Na~-黏土与 K~-粘土之溶液中,因 OH 离子较多(pH=8.0—8.6),而磷酸钠与磷酸钾又为水溶性,故磷酸固定量为最少。Ca~-粘土与 Mg-粘土其反应属中性至微碱性,pH=7.5—8.0,因溶液中 Ca,Mg 离子浓度较高,磷酸则为此 Ca,Mg离子所固定,故在中性土壤中,磷酸固定以 Ca 为其主要在子,酸性土壤则以水化铁为其主要因子。 4.钙粘土所固定之磷酸,如以0.002 N H_2SO_4提取,其所固定之磷酸复可溶解,是项固定之磷酸与 Heck 所称「暂时固定磷酸」颇为相似。

In view of the necessity of a rapid and accurate process for the deter-mination of fluorine applicable in the analysis of sodium fluoride and otherfluorine compounds,the author has established a new volumetric processconsisting in the titration in aqueous-alcoholic medium with ferric nitrate asstandard solution and sodium salicylate as indicator.All of the methods,published by Guyot,Greeff,Fairchild andVisintin proposed for the determination of fluorine using ferric solutionas standard,are based on the reaction:6NaF+FeCl_3→Na_3FeF_6+3NaCl....

In view of the necessity of a rapid and accurate process for the deter-mination of fluorine applicable in the analysis of sodium fluoride and otherfluorine compounds,the author has established a new volumetric processconsisting in the titration in aqueous-alcoholic medium with ferric nitrate asstandard solution and sodium salicylate as indicator.All of the methods,published by Guyot,Greeff,Fairchild andVisintin proposed for the determination of fluorine using ferric solutionas standard,are based on the reaction:6NaF+FeCl_3→Na_3FeF_6+3NaCl. But the sodium ferric fluoride thus formed is fairly soluble in water and makesthe end-point unclear,therefore the titration can not be performed accurately.This seems to be due to the fact that the following two reactions advancesimultaneously,and accordingly the formation of sodium ferric fluoride is in-complete in aque(?)us medium:3NaF+Fe(NO_3)_3→FeF_3+3N_aNO_33NaF+FeF_3→Na_3FeF_6Nevertheless,these reactions,according to the author's experiments;proceedalmost quantitatively in meda.containing at least 50% by volume of alcohol.This paper reports the xperimental results obtained in the fundamentalstudies on the various factors influencing the accuracy of the volumetry,namely,the sensitivity and the necessary amount of sodium salicylate used asindicator,the pH value,the alcoholic concentration of the titration medium,the concentration of the fluoride taken for the determination and the timewhen alcohol should be added in the course of titration.Furthermore,a rapidvolumetric process with high accuracy is proposed together with its applicationsin ordinary analyses of sodium fluoride and other fluorine compounds.The proposed method is characteristic in using sodium salicylate asindicator,which shows sharp violet color with minute amount of ferric ion inmedium of pH 3 controlled with buffer solution,then titrating with standardferric nitrate,and adding proper amount of alcohol(the alcoholic concentra-tion at the end-point should be above 50%)during the titration,when themedium becomes orange yellow in color.The method may be summarized as follows:Take 5 ml of neutral sodiumfluoride solution of about 0.3 N in a small Erlenmeyer flask,add 2.5 mlof Walpole's buffer solution of pH 3(formed by dissolving 34.0 g ofcrystalline sodium acetate and 20 ml of 38% HCl in water,and making upto 250 ml)and 1 ml of 0.1 M sodium salicylate dissolved in 50% alcohol.After sufficient stirring,titrate with standard 0.3 N(0.05 M)ferric nitratesolution,using micro-burette until the medium becomes orange yellow,thisstep being reached after addition of about 4 ml of titrant.Then decolorizethe solution by adding 12.5 ml of absolute alcohol(or 13 ml of 95% alcohol),previously purified by redistillation with lime;stirring is necessary during theaddition.Further continue the titration until the light pink color formeddoes not fade after stirring for 30 seconds when observed over a white surface. In the analyses of sodium fluoride and other fluorine compounds con-taining interfering substances,such as divalent and polyvalent metallic ions,phosphate,silicate,borate,carbonate,sulfide ions and reductants acting on ferricion,it is necessary to separate fluorine from these interfering substances bythe distillation with sulfuric acid according to the method of Willard andWinter(20).Then the distillate is neutralized with dilute sodium hydroxideand adjusted to the proper pH with hydrochloric acid using p-nitrophenol asindicator.The solution is ready for titration as described.But in the caseof absence of these interfering substances except carbonate,for example,inthe determination of the concentration of sodium fluorde solution obtained bythe extraction of the crude product,produced industrially by fusing fluorsparwith sodium carbonate and silica,the above separation of fluorine by dis-tillation is dispensable.The anaIytical results obtained by the proposed method are in goodagreement with those obtained by the lead chlorofluoride process(8),whichis recognized as official method for the determination of fluorine in agriculturalproducts.

本文介绍一容量分析氟的新方法和在工业制品上的应用,并分析了一种工业制备的氟化钠液,所得的结果和氟氯化铅法所得的极为一致。对于影响该分析法准确度的各种因素:指示剂的灵敏度和滴定时适宜的用量、溶液的 pH 值、应加的乙醇量、操作中加乙醇的次序、以及氟离子的适宜浓度,均加以研究并找出适宜的情况。本法用硝酸铁为标准液,水杨酸钠作指示剂,在 pH=3左右作滴定;当溶液呈橙黄色时,加入适量的乙醇,使其浓度在终点时仍不低于50%。如有干扰物质如二价及多价金属离子、磷酸根、矽酸根、硼酸根、碳酸根、硫化物和还原物质可能与三价铁起作用者,均应分离之。

Citrus in South China is affected with a highly destructive disease known as"Yellow shoot".The disease is most serious in the Chaoshan and the Yuehchungdistricts of Kwangtung Province and in the Changchow district of Fukien Province.It has been known in the Chaoshan district for over 70 years but has becomeepiphytotic only since about 30 years ago.During this period,millions of Citrustrees have been killed. Citrus trees may be affected in any age.The characteristic symptoms of thedisease are general yellowing...

Citrus in South China is affected with a highly destructive disease known as"Yellow shoot".The disease is most serious in the Chaoshan and the Yuehchungdistricts of Kwangtung Province and in the Changchow district of Fukien Province.It has been known in the Chaoshan district for over 70 years but has becomeepiphytotic only since about 30 years ago.During this period,millions of Citrustrees have been killed. Citrus trees may be affected in any age.The characteristic symptoms of thedisease are general yellowing of some of the nearly mature new shoots put out insummer,autumn,or early winter,dropping of the yellow leaves,and rotting ofrootlets.In addition to these general symptoms in the early stage,fasciculationof branches and malformation of leaves (abnormally large or deformed in variousways) often occur on Ponkan and Chiaokan (C.reticulata) and are particularlycommon on sweet orange.On affected sweet orange trees may also be seenshortening of internodes,resulting in bunchy growth of branches,and downwardas well as upright growth of shoots.In a later stage,the affected tree puts outnew shoots as usual but such shoots generally become chlorotic showing zinc ormanganese deficiency symptoms.The midrib and lateral veins as well as theadjoining tissues of part of the older leaves turn yellow.The midrib and largerveins may also become enlarged and corky and often split on dorsal side,showingnitrogen and boron deficiency symptoms.Affected trees blossom earlier and moreheavily than usual but bear few fruits.On badly affected trees fruits matureearlier but do not color well and are often deformed.Defoliation and root rottingbecome progressively serious as the disease advances.Young trees below 7 yearsof age generally are killed in 1 to 2 years or sooner.Nursery trees are killedeven more quickly.Older trees decline less rapidly but generally become unpro-ductive in about 2 years after the first symptoms appear. Nearly all the species and varieties of Citrus grown in the affected area aresusceptible.The order of degree of susceptibility is as follows: Ponkan,Chiaokan,Chachihkan,Lukan,Tungkan (all (C.reticulata),various varieties of sweet orange(C.sinensis),Hungninmeng (hybrid of C.lemon and C.rcticulata) Nienchu (C.rcticulata),Shangmayu (C.graudis) and Shihchichu (C.mitis). Studies of the cause of the disease will be reported in a later paper.

广东的潮汕区、新会县、番禺縣、广州市郊,福建的龍溪縣、福州市郊,和广西的柳城、融縣、兴業縣、郁林縣的柑桔类,都發生一种毁滅性的病害称为黄梢,或黄龍病。病区各种柑桔类的各品种一般都很易感染。其感病程度的次序大約如下:栟柑、蕉柑、茶枝柑、蘆柑、桶柑、各种甜橙、紅檸檬、年桔、桑麻柚及四季桔。用实生苗繁殖的福州紅桔及廣柑(橙),和福建龍溪的坪山柚及文旦柚,則未見發病。各齡的柑桔樹——自苗木至20齡以上的老樹——都能感染,一般以3—8齡的幼樹受害最烈?静〉闹饕钗跗诓糠中律业囊度烤然苹T谔鸪取薷毯徒陡躺嫌幸徊糠只苹蛘>G色的叶特别肥大或呈各种畸形狀态,有許多新梢簇生或束化。發病的枝条很快落叶。老枝上的叶有一部分亦黄化脫落。根系腐烂。至發病中期,新梢的叶多呈缺鋅或缺锰病狀,老叶呈缺氮及缺硼病狀,落叶及根腐更嚴重,开花早而多,結果少,部分枝条枯死。到后期,全株嚴重雕殘,終而枯死。本病在70—80年前在廣东潮汕区已有發现,但在近30年來始在各地蔓延成灾壳氨静≡诠愣鄙乔V州市郊及新会縣和福建龍溪縣已成为柑枯業發展的限制因素。

 
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