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     The cross sections (in 10-14 cm2) for K(7S) → Rb(7DJ)excitation transfer for J being 3/2, 5/2 at the temperature of 425 K were 2.08±0.77 and2.86±1 .06, respectively.
     在T=425K时,得到K7S→Rb72DJ激发转移截面(10-14cm2单位)分别为2.08±0.77(=3/2)和2.86±1.06(J=5/2)。
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     The results showed:(1)The mean number of collected cells(MNC) in the rhG-CSF group was MNC(8.29±6.14)×10 ̄8/kg and CFU-GM(21.35±17.24)×10 ̄4/kg, being highest among the 3 groups.
     结果表明:(1)rhG-CSF方案组的PBSC产率最高,平均每例MNC(单个核细胞)(8.29±6.14)×10 ̄8/kg,CFU-GM(粒单系祖细胞集落生成单位)(21.35±17.24)×10 ̄4/kg。
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     131. 50±23. 37Nu/mL and 70. 99±14.00 U in control group. the results showed the activity of GSH-px was statistically increased in contrasy with control group (p<0.01).
     观察组与对照组SOD和GSH-PX的活性分别为124.47±16.67(NU/ml)、131.50±23.37(NU/ml)和117.17±17.21(活力单位),70.99±14.00(活力单位)
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     The dependenceof phase transition temperature T_c on the particle size D(in nm)can be expressed by the ernpirical formula :T_c(D)=766-256/(D-8.8)(K),where 766K is the transition temperature for bulk PbTiO_3 and 9. 1nm isthe critical size below which ferroelectricity disappears.
     相变温度T_c与粒子尺寸D(以nm为单位)的关系可用经验公式T_c(D)=766-256/(D-8.8)(K)表示,其中766K是PbTiO_3体材料的相变温度。 9.1nm是呈现铁电性的最小尺寸。
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     Type 4 human Adenovirus (Ad4) DNA was extracted and purified from A549 monolayer cell culture infected with vaccine strain of Ad4 (Wyeth,USA). EcoRI digested D fragment (70.5-83.0) was inserted into pUC18.and thus,a pAd4 (70.5-83.0) plasmid was constructed.
     以4型腺病毒疫苗株感染A549细胞,提取病毒DNA,将EcoRI消化的D片段(70.5-83.0基因图谱单位)克隆入pUC18质粒,得pAd4(70.5-83)质粒,质粒pAd4(70.5-83)和pAd4C1-25经酶切、系列亚克隆、加接头等方法得到大部分和部分缺失E3区的重组质粒。
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     Photosynthetic unit
     光合单位
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     On Joint Offense of Units
     论单位共同犯罪
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  unit)
Algebraic monoids with affine unit group are affine
      
In this short paper we prove that any irreducible algebraic monoid whose unit group is an affine algebraic group is affine.
      
One outcome is a simple proof that for $g_{m \alpha , n \beta}$ to span $L^2,$ the lattice $(m \alpha , n \beta )$ must have at least unit density.
      
This is done by proving that a well-known method, the construction of a Perron Tree, can be applied to a larger collection of subsets of the unit circle than was earlier known.
      
In the special case of Ω=Id, the d-dimensional unit cube, we prove this conjecture, with Ω'=Id, for d≤3, describing all the tilings by Id, and for all d when Λ is a discrete periodic set.
      
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A right hallow circular cylinder of quartz having its generator parallel to the principal axis liberates electricity when subjected to torsion about its axis. Charges of opposite signs appear on the inner and outer surfaces. When torsion is applied in the same sense as that of the optical rotation, positive electricity is developed on the outer surface, and vice versa. The quantity of electricity produced by the action of a couple of moment C on a hollow quartz cylinder of external diameter d0, internal diameter...

A right hallow circular cylinder of quartz having its generator parallel to the principal axis liberates electricity when subjected to torsion about its axis. Charges of opposite signs appear on the inner and outer surfaces. When torsion is applied in the same sense as that of the optical rotation, positive electricity is developed on the outer surface, and vice versa. The quantity of electricity produced by the action of a couple of moment C on a hollow quartz cylinder of external diameter d0, internal diameter di and length l is klC/do do-di), where k is equal to 9.2x10-8 in absolute C. G. S. electrostatic units.

割水晶成一圆柱,圆柱之轴即为晶体之光轴,在圆柱之中心穿一孔道,使成一空心圆柱壳,以金属箔敷於圆柱壳内外侧面成两电极。当圆柱之一端固定,一端被扭,则两电极发生异号而等量之电荷,扭转之方向既易,内外两极电荷之号亦互易。若扭力偶矩左旋,则左旋水晶柱之外极得正电;若扭力偶矩右旋则右旋水晶柱之外极得正电。 吾人曾由实验测定水晶圆柱之长短l,内外直径d_i及d_0之大小,与由扭偶矩C所生电量q之关系式如次: q=k(l/(d_0(d_0-d_i)))C式中K为一常数,在C.G.S.绝对静电单位制中等於9.2×10~(-8)。

The absorption band of water vapor at 0.94 μ is studied photographically by means of a concave grating spectrometer. Twenty eight component lines are observed and measured on a comparator as well as on a Moll microphotometer. This band shows something of a doublet form which suggests that the H2O molecule has a triangular form with the oxygen atom at the vertex of an obtuse angle. The lines agree closely with some of the absorption lines in the solar spectrum as measured by Abney in 1880.

前之研究红外光谱者类多依赖热电堆以测定光谱内光能之分布。吾人咸知红外带状光谱之接近可见部分者,其成分线排列甚密。若用热电堆万难分析而得其细微组织。作者所考察之光谱正在红外照相片感光范围之内,故得测定水汽带状光谱内各成分线之波长而具有1内之准确度。 作者所用分光仪器为一凹面光栅,其曲度半径为2公尺。该光栅面上每厘米划有线6000根,颇适合红外光谱之探讨。所用光源为一1000流明之电灯泡泡内有一一字形线圈灯丝,其所发之光穿过2公尺之105°—110℃水汽而交聚在分光仪之缝上。红外照相片经氨溶液之超度敏化后,即安置於已经配准之相片匣内,而使之感光。光之可见部分系用深红滤片割除。照光时间约 费四五十小时,然后除去滤片,照以水银光谱凡数秒,作为决定波长之标准。 用前法所摄得之光谱大都不十分清晰,其主要原因系由水汽管之太短。但用显微光度计量之,各成分线之波长不难准至1(?)范围以内。本实验所得各线若与五十年前Abney所测定太阳光谱中0.94μ附近之吸收线相比较,可见太阳红外光谱中许多吸收线系由大气中水汽所产生,而证实Abney最初之推想。惟本实验所测定之吸收线与Abney所测定太阳光谱中之对应黑线具有一等差数约合1.5...

前之研究红外光谱者类多依赖热电堆以测定光谱内光能之分布。吾人咸知红外带状光谱之接近可见部分者,其成分线排列甚密。若用热电堆万难分析而得其细微组织。作者所考察之光谱正在红外照相片感光范围之内,故得测定水汽带状光谱内各成分线之波长而具有1内之准确度。 作者所用分光仪器为一凹面光栅,其曲度半径为2公尺。该光栅面上每厘米划有线6000根,颇适合红外光谱之探讨。所用光源为一1000流明之电灯泡泡内有一一字形线圈灯丝,其所发之光穿过2公尺之105°—110℃水汽而交聚在分光仪之缝上。红外照相片经氨溶液之超度敏化后,即安置於已经配准之相片匣内,而使之感光。光之可见部分系用深红滤片割除。照光时间约 费四五十小时,然后除去滤片,照以水银光谱凡数秒,作为决定波长之标准。 用前法所摄得之光谱大都不十分清晰,其主要原因系由水汽管之太短。但用显微光度计量之,各成分线之波长不难准至1(?)范围以内。本实验所得各线若与五十年前Abney所测定太阳光谱中0.94μ附近之吸收线相比较,可见太阳红外光谱中许多吸收线系由大气中水汽所产生,而证实Abney最初之推想。惟本实验所测定之吸收线与Abney所测定太阳光谱中之对应黑线具有一等差数约合1.5(?)_0此等差数之产生想系由於波长单位之不同以及个别仪器误差所

A variatioual calculation of the energy of the-2s2 is state of helium has been carried out with the use of a wave function of the Hylleraasian typo. The wave function is where s,t u are in units of 4 times the first Bohr radius of hydrogen. The energy iscompared with the value -1.4400 Rh obtained by the method of self-consistent field.

本文以变分法计算2s~21~S态氦原子之能量,所用之波函式,即:=e~(-0.2278s){1-0.17079s-0.063155u-0.013869t~2 +0.010044u~2+0.0064785s~2}上式中之s,t,u均以4倍於氢原子之第一Bohr半径为单位。由此所计算得之能量为 E(2s~21~S)=-1.5412Rh而由自足场方法所算得之值则为-1.4400Rh。

 
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