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last two
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  最后两个
     In the last two decades of the twentieth century, Internet emerged, developed and boomed, which made deep impressions on almost every aspect, such as the world politics, economics, cultures and human life.
     在20世纪的最后两个十年中,互联网作为改变整个世界运行状态与构成结构的一种新兴事物开始萌生、发展以及壮大,到目前为止已经在世界政治、经济、文化、人类生活等等各个方面产生了翻天覆地的深刻影响。
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     The other two H2O molecules combine moderately with central MgCl2 , the bond lengths of R[ O-Mg] are 0. 214 2 nm, 0. 215 2 nm, respectively. The last two H2O molecules combine tightly with central MgCl2, the bond lengths of R [O-Mg] are both 0. 208 1 nm, which means it is hard to be removed.
     另两个水分子与氯化镁结合适中,R[O-Mg]键长分别为0.2142nm和0.2152nm,最后两个水分子与氯化镁结合较牢,R[O-Mg]键长均为0.2081nm,这两个水分子最难脱除。
短句来源
     The last two sections of this paper are suggestions of tactics and application of work/family balance plan.
     文章的最后两个部分是工作—家庭平衡计划的策略建议和应用研究。
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     HEINRICH-RHYTHM PULSES OF CLIMATES RECORDED IN LOESS OF THE LAST TWO GLACIATIONS
     最后两个冰期黄土中记录的Heinrich型气候节拍
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     The last two parts discusses the practice of the income tax expenditure.
     最后两个部分结合前面的理论分析,对所得税税式支出的实践进行探讨。
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  后两种
     Results The average PR of staphylococcus, pneumococcus and colibacillus were 26. 25 % , 22. 60 % and 22. 57 % , and the average SI were 4.72,3.70 and 3.53 respectively, the average PR and SI of last two kinds of bacteria were much lower than at of staphylococcus (P<0.05).
     结果大鼠中性粒细胞对金黄色葡萄球菌、肺炎球菌和大肠杆菌的平均PR分别为26.25%、22.60%和22.57%,平均SI分别为4.72、3.70和3.53,后两种细菌与金黄色葡萄球菌相比均有显著性差异(P<0.05)。
短句来源
     There was statistic difference between standard AFO walking and the last two states(AFO-3,AFO-4) of modified AFO walking (P<0.05).
     同时穿戴普通AFO步行与改良式AFO的后两种状态(AFO-3、AFO-4)之间差异也有显著性意义(P<0.05)。
短句来源
     The test research on five types of catalysts shows that all these catalysts of YD5-51,YD5-52,SAPO-11 and ZSM-35 have high activity ,and the last two ones have good selection.
     对于五类沸石催化剂的研究结果表明,YD5-51型催化剂、YD5-52型催化剂、SAPO-11型催化剂和ZSM-35型催化剂都具有高活性,后两种还具有很好的选择性
短句来源
     And it can also affect the activity of TiO 2 that used as the photocatalyst under the last two conditions.
     在后两种条件下 ,H2 O2 还影响到用作光催化剂的 Ti O2 的活性。
短句来源
     We use five index to appraise the temperature susceptibility of the eight asphalt material, such as PI, PVN25-60 , C. I, PVN25-135 and VTS. Among these index, the results of first three kinds are very close, the last two kinds have small differences with the first three kinds, the overall trend is similar.
     用指标PI、PVN_(25-60)、C.I、PVN_(25-135)、VTS来评价沥青材料感温性的优劣,其中前三种得到的结果很接近,后两种与前三种有微小的差别,总体趋势差不多。
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  “last two”译为未确定词的双语例句
     Study of Stress Measurement In-situ in the Last Two Decades
     二十年岩体应力现场实测研究
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     Results The tumor volume of control, 5-FU, magnetic nanoparticles and Gemcitabine groups was (2256.1±267.1) mm3, (2096.5±237.9)mm3,(1392.2±189)mm3, and (1534.9±115 )mm3 respectively. The last two groups have significant difference compared to the first two groups(P<0.05).
     结果A,B,C,D组于治疗后35d肿瘤体积分别为(2256.1±267.1)mm3,(2096.5±237.9)mm3,(1392.2±189)mm3,(1534.9±115)mm3,其中C,D组与A,B组之间的肿瘤体积比较有明显差异(P<0.05)。
短句来源
     155 strains of El Tor biotype of O1 serogroup(EVC)were divided into four types(class,ET,class+ET,class+new ET). The last two types were the first time found in these areas.
     VCO1群埃尔托型(EVC)155株共分为4个类型:class、ET、class+ET、class+newET,后2个类型为首次发现。
短句来源
     3) Last,two means are used to approximate the digitized outline and the results are compared.
     3)使用了两种方法对轮廓线进行了多边形拟合,并把两个结果进行了比较。
短句来源
     The models of diabetic nephropathy were established in the last two groups by 65 mg/kg streptozotocin and 2 u long-acting insulins was injected the next day.
     模型组和厄贝沙坦组分别用链脲佐菌素65mg/kg诱导建立糖尿病肾病模型,并给予长效胰岛素2u隔日皮下注射。
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  last two
The main part of the work deals with abstract Higgs bundles; in the last two sections we derive the applications to Higgs bundles valued in a line bundle K and to bundles on elliptic fibrations.
      
An array of complicated structures of the natural products synthesized over the last two years is also listed to serve as a convenient lead to the original literature for the prospective interested readers.
      
This paper reports the measurement of the Neodymium isotopic composition by Neptune Multiple Collector Inductively Coupled Plasma Mass Spectrometry (MC-ICP-MS) over the last two years.
      
There are two model outputs, where either the first two characters form a word or the last two characters form a word.
      
Methods for obtaining sign-changing solutions developed in the last two decades will also be briefly revisited.
      
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Wang's theory for determining the approximate configurational partition function of the adsorbed layer is modified in two different ways. One is to assume that the configurational energy should be corrected: the other to advocate that the deficiency due to a wrong expression for the a priori probability of the. central site is more significant.The configurational partition function is evaluated is both methods and the adsorptipn isotherin and the beat of adsorption computed for the case of quadratic lattice...

Wang's theory for determining the approximate configurational partition function of the adsorbed layer is modified in two different ways. One is to assume that the configurational energy should be corrected: the other to advocate that the deficiency due to a wrong expression for the a priori probability of the. central site is more significant.The configurational partition function is evaluated is both methods and the adsorptipn isotherin and the beat of adsorption computed for the case of quadratic lattice With dipole interaction. values for the last two quantities when a uniform continuous distribution of the distant adsorbed particles is assumed are further given for comparison. The second method, which surpasses the first, is compared with Kirkwood's method. in the case of hexagonal lattice with neighbour interaction. Numerical work is also carried out in this case.

本文就王竹溪先生之理论用两种不同方法加以改良。一种为改变能量公式,另一种为改变中心格点之或然率。用此二法皆可求得近似配分函数。所得关於方格在偶极作用情形下之粘附等温曲线及粘附热之数值用图比较之,并与旧日平均连续分布之理论比较。本文所用之第二法实较第一法为佳,故应用之以讨论一三角格在相邻作用情形下之粘附现象,且应用Kirkwood理论以为比较。数值结果亦有图表之。

Integrating with respect to time the equation for the balance of angular momentum of the atmosphere north of certain latitude (30°N say)we obtainIn the above equation ρ is thedensity; (?), the zonal wind; v, the meridional wind; R, the earth's radius; Ω, the angular speed-of the earth's rotation; dm, the mass element of the atmosphere; dτ, the volume element; ds, the area element on the earth's surface, and dσ, the urea element on the vertical surface over the latitudial circle of 30°N. The first two terms (in...

Integrating with respect to time the equation for the balance of angular momentum of the atmosphere north of certain latitude (30°N say)we obtainIn the above equation ρ is thedensity; (?), the zonal wind; v, the meridional wind; R, the earth's radius; Ω, the angular speed-of the earth's rotation; dm, the mass element of the atmosphere; dτ, the volume element; ds, the area element on the earth's surface, and dσ, the urea element on the vertical surface over the latitudial circle of 30°N. The first two terms (in the parenthesis) On the left side of (2) are evaluated from the mean westerlies in summer and winter given by Mintz. The last two terms on the left and the first two terms on the right side of (2) are evaluated from the mean surface pressure charts of July and January. The transfer of angular momentum across latitude 30°N given by Starr and White is used to evaluate the 3rd. term on the right. Then the value of the last two terms in the parenthesis on the right of (2) is calculated. The result agrees very well with that obtained by other authers.It is further found that: 1. From summer to winter the transfer of angular momentum from low to high latitudes by gross weather systems overcompensates the destruction by the earth's surface. The small residue of these two factors acounts for the main part (about85%)of increase of westerly circulation from summer to winter. The remaining small part of the increase of the westerly circulation may be acounted for by the advection of mass of the atmosphere, which carries the angular momentum due to earth's rotation (difference between the first two terms on the right and the last two terms on the left side of (2)).2. The transfer of angular momentum or the destruction of angular momentum, as well as the intensity of the westerly circulation has annual variation. However this annual variation is not of sine or cosine type, i,θ, the variation from summer to winter is not the opposite of that from winter to. summer. The property of this asymmetry is explained by the irreversible heat addition and subtraction. From winter, to summer heat is added to, and summer to winter heat is subtracted from the atmosphere (N.H.). Since the process of adding and subtracting heat is irreversible, the variation from summer to winter can not be symmetric to that from winter to summer.3. Transfer of angular momentum from easterlies to westerlies occurs mainly in the period of breakdown of zonal circulation (low index), mainly in the belt of longitudes of"extended troughs" (troughs extending from high to low latitudes) and "extended ridges" (ridges extending from low to highlatitudes), and mainly in the high levels of the atmosphere.

把30°N以北大气角動量平衡方程由七月積分到一月,則其中各項都可計算:此緯度以北大气相对西風角動量的改变可用Mintz平均西風冬夏分佈圖算出;地轉角動量的改变可用冬夏地面平均气压圖算出;通过30°N緯度的角動量的渦動輸送已为Starr和White算出,因此利用積分結果可求得30°N以北地面应力和山脈东西兩側气压差所引起的角動量消耗,結果与别的作者用别的方法所得數值極为符合。 作者更指出: 1.从夏到冬大型天气系統的角动量輸送勝过地面摩擦的消耗,从夏到冬西風环流增强的主要部分(約85%)即由於二者之差,西風环流增强的其餘一小部分則由於大气的質量平流,而引起地轉角動量的傳送。 2.角動量的输送,角動量的消耗以及西風环流强度都有年变化。但这种年变化並非正餘弦型,即从夏到冬的变化並不正是从冬到夏变化的反面,此种非对称性可由加熱过程和减熱过程的不可逆性解釋。在北半球从冬到夏对大气來说是加熱的,而从夏到冬大气失去熱量,因为加熟过程和減熱过程都不是可逆的,故从夏到冬的变化也不与从冬到夏的变化对称。 3.东風帶向西風帶的角動量輸送,主要發生於西風环流破坏的時候;主要發生於“引伸槽”和“引伸脊”的經度帶;同時也主要發生於大气的...

把30°N以北大气角動量平衡方程由七月積分到一月,則其中各項都可計算:此緯度以北大气相对西風角動量的改变可用Mintz平均西風冬夏分佈圖算出;地轉角動量的改变可用冬夏地面平均气压圖算出;通过30°N緯度的角動量的渦動輸送已为Starr和White算出,因此利用積分結果可求得30°N以北地面应力和山脈东西兩側气压差所引起的角動量消耗,結果与别的作者用别的方法所得數值極为符合。 作者更指出: 1.从夏到冬大型天气系統的角动量輸送勝过地面摩擦的消耗,从夏到冬西風环流增强的主要部分(約85%)即由於二者之差,西風环流增强的其餘一小部分則由於大气的質量平流,而引起地轉角動量的傳送。 2.角動量的输送,角動量的消耗以及西風环流强度都有年变化。但这种年变化並非正餘弦型,即从夏到冬的变化並不正是从冬到夏变化的反面,此种非对称性可由加熱过程和减熱过程的不可逆性解釋。在北半球从冬到夏对大气來说是加熱的,而从夏到冬大气失去熱量,因为加熟过程和減熱过程都不是可逆的,故从夏到冬的变化也不与从冬到夏的变化对称。 3.东風帶向西風帶的角動量輸送,主要發生於西風环流破坏的時候;主要發生於“引伸槽”和“引伸脊”的經度帶;同時也主要發生於大气的高層。

Fineness modulus (F. M.) has served as an index of fineness of aggregates since it was first introduced by Prof. Duff A. Abrams in 1918. In the concrete mix design, the F. M. of sand governs the sand content and hence the proportions of other ingredients. But there are undesirable features in F. M.: it does not represent the grading of sand and manifests no significant physical concept.Prof. suggested an "average diameter" (d_(cp)) in 1943 as a measure of fineness of sand. In 1944, d_(cp) was adopted in 2781-44...

Fineness modulus (F. M.) has served as an index of fineness of aggregates since it was first introduced by Prof. Duff A. Abrams in 1918. In the concrete mix design, the F. M. of sand governs the sand content and hence the proportions of other ingredients. But there are undesirable features in F. M.: it does not represent the grading of sand and manifests no significant physical concept.Prof. suggested an "average diameter" (d_(cp)) in 1943 as a measure of fineness of sand. In 1944, d_(cp) was adopted in 2781-44 as national standard to specify the fine aggregate for concrete in USSR. It was introduced to China in 1952 and soon becomes popular in all technical literatures concerning concrete aggregates and materials of construction.After careful and thorough investigation from ordinary and special gradings of sand, the equation of d_(cp) appears to be not so sound in principle and the value of d_(cp) computed from this equation is not applicable to engineering practice. The assumption that the initial average diameter (ν) of sand grains between consecutive seives is the arithmetical mean of the openings is not in best logic. The value of an average diameter computed from the total number of grains irrespective of their sizes will depend solely on the fines, because the fines are much more in number than the coarses. Grains in the two coarser grades (larger than 1.2 mm or retained on No. 16 seive) comprising about 2/5 of the whole lot are not duly represented and become null and void in d_(cp) equation. This is why the initiator neglected the last two terms of the equation in his own computation. Furthermore, the value of d_(cp) varies irregularly and even inversely while the sands are progressing from fine to coarse (see Fig. 4).As F. M. is still the only practical and yet the simplest index in controlling fineness of sand, this paper attempts to interpret it with a sound physical concept. By analyzing the F. M. equation (2a) in the form of Table 9, it is discovered that the coefficients (1, 2…6) of the separate fractions (the percentages retained between consecutive seives, a1, a2…a6) are not "size factors" as called by Prof. H. T. Gilkey (see p. 93, reference 4), but are "coarseness coefficients" which indicate the number of seives that each separate fraction can retain on them. The more seives the fraction can retain, the coarser is the fraction. So, it is logical to call it a "coarseness coefficient". The product of separate fraction by its corresponding coarseness coefficient will be the "separate coarseness modulus". The sum of all the separate coarseness moduli is the total "coarseness modulus" (M_c).Similarly, if we compute the total modulus from the coefficients based on number of seives that any fraction can pass instead of retain, we shall arrive at the true "fineness modulus" (M_f).By assuming the initial mean diameter (ν') of sand grains between consecutive seives to be the geometrical mean of the openings instead of the arithmetical mean, a "modular diameter" (d_m), measured in mm (or in micron) is derived as a function of M_c (or F. M.) and can be expressed by a rational formula in a very generalized form (see equation 12). This equation is very instructive and can be stated as a definition of mqdular diameter as following:"The modular diameter (d_m) is the product of the geometrical mean ((d_0×d_(-1))~(1/2) next below the finest seive of the series and the seive ratio (R_s) in power of modulus (M_c)." If we convert the exponential equation into a logarithmic equation with inch as unit, we get equation (11) which coincides with the equation for F. M. suggested by Prof. Abrams in 1918.Modular diameter can be solved graphically in the following way: (1) Draw an "equivalent modular curve" of two grades based on M_c (or F. M.) (see Fig. 6). (2) Along the ordinate between the two grades, find its intersecting point with the modular curve. (3) Read the log scale on the ordinate, thus get the value of the required d_m corresponding to M_c (see Fig. 5).As the modular diameter has a linear dimension with a defin

細度模數用為砂的粗細程度的指標,已有三十餘年的歷史;尤其是在混凝土的配合上,砂的細度模數如有變化,含砂率和加水量也要加以相應的調整,才能維持混凝土的稠度(以陷度代表)不變。但是細度模數有兩大缺點,一個是模數的物理意義不明,另一個是模數不能表示出砂的級配來。蘇聯斯克拉姆塔耶夫教授於1943年提出砂的平均粒徑(d_(cp))來,以為砂的細度指標;雖然平均粒徑仍不包含級配的意義,但是有了比較明確的物理意義,並且可以用毫米來度量,這是一種新的發展。不過砂的細度問題還不能由平均粒徑而得到解决,且平均粒徑計算式中的五項,僅首三項有效,1.2和2.5毫米以上的兩級粗砂在計算式中不生作用,以致影響了它的實用效果。本文對於平均粒徑計算式的創立方法加以追尋和推演,發現其基本假設及物理意義,又設例演算,以考察其變化的規律性;認為細度模數還有其一定的實用價值,不能為平均粒徑所代替。至於補救細度模數缺點的方法,本文試由模數本身中去尋找;將模數的計算式加以理論上的補充後,不但能分析出模數的物理意義,並且還發現模數有細度和粗度之別。根據累計篩餘計算出來的F.M.應稱為“粗度模數”,根據通過量計算出來的才是“細度模數”。假定兩隣篩间的顆粒是...

細度模數用為砂的粗細程度的指標,已有三十餘年的歷史;尤其是在混凝土的配合上,砂的細度模數如有變化,含砂率和加水量也要加以相應的調整,才能維持混凝土的稠度(以陷度代表)不變。但是細度模數有兩大缺點,一個是模數的物理意義不明,另一個是模數不能表示出砂的級配來。蘇聯斯克拉姆塔耶夫教授於1943年提出砂的平均粒徑(d_(cp))來,以為砂的細度指標;雖然平均粒徑仍不包含級配的意義,但是有了比較明確的物理意義,並且可以用毫米來度量,這是一種新的發展。不過砂的細度問題還不能由平均粒徑而得到解决,且平均粒徑計算式中的五項,僅首三項有效,1.2和2.5毫米以上的兩級粗砂在計算式中不生作用,以致影響了它的實用效果。本文對於平均粒徑計算式的創立方法加以追尋和推演,發現其基本假設及物理意義,又設例演算,以考察其變化的規律性;認為細度模數還有其一定的實用價值,不能為平均粒徑所代替。至於補救細度模數缺點的方法,本文試由模數本身中去尋找;將模數的計算式加以理論上的補充後,不但能分析出模數的物理意義,並且還發現模數有細度和粗度之別。根據累計篩餘計算出來的F.M.應稱為“粗度模數”,根據通過量計算出來的才是“細度模數”。假定兩隣篩间的顆粒是兩篩篩孔的幾何平均值,以代替數學平均值(即斯氏平均?

 
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