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average value     
相关语句
  平均值
     Integral Average Value and Its Application
     积分平均值及其应用
短句来源
     Two Average Value Theorems On Ramsey Problem and the Initial Exploration of Their Applications
     关于Ramsey问题的两个平均值定理及其应用初探
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     On the average Value and limiting error of straightness error
     关于直线度误差的平均值及其极限误差
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     THE MEASUR EMRNT OF AVERAGE VALUE AND EFFECTIVE VALUE OF AC VOLTAGE BY THE METHOD OF OSCILLOGRAPH
     示波器法测交流电压的平均值及有效值
短句来源
     The results showed that annual average value of TLIc declined clear in Station Ⅰand Station Ⅳ,declined little in Station Ⅱ and Station Ⅲ after dredging treatment.
     结果表明,Ⅰ站和Ⅳ站综合营养状态指数年平均值下降幅度较大,Ⅱ站和Ⅲ站TLIc年平均值下降幅度较小。
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  均值
     The best fitness model between the average value of SOS and age was Y=3 237.62+264.52ln(X)(r=0.91,F=77.97,P<0.01).
     骨SOS均值与年龄关系的最优模型为Y=3 237.62+264.52ln(X)(r=0.91,F=77.97,P<0.01)。
短句来源
     The FPSA average value was 0.13 ng/mL and fPSA/TPSA(f/T)>0.2 in 4cases(13%),<0.2 in 26 cases (87%).
     fPSA均值0.13 ng/mL,fPSA/TPSA(f/T)比值>0.2者4例(13%),<0.2者26例(87%)。
短句来源
     The biomass of phytoplankton was 8~1 320 mg/m~(3),with average value 432.5 mg/m~(3).
     浮游植物生物量为8~1 320 mg/m3,均值为432.5 mg/m3,变化幅度大,分布不均匀。
短句来源
     average value of CarbE activity was(362.7±195.0)nmol/(ml·min);
     CarbE均值为(36 2 7± 195 0 )nmol/(ml·min) ;
短句来源
     Results showed that the average value in different age groups was as follows: 120.34ng/ml in neonate, 49.46ng/ml in 6 month~3 year old group 78.89ng/ ml in the age group from 4 to 7 yaers old and 73.20ng/ ml in 8~14 age group.
     结果表明各年龄均值为:新生儿120.34ng/ml,6个月~3岁49.46ng/ml,4岁~7岁78.89ng/ml. 8岁~14岁73.20ng/ml.
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  平均
     The average value of χlf of the agricultural soils is 32.5×10-8 m3/kg, varying in the range of (15~58.6)×10-8 m3/kg.
     农业区土壤χlf平均为32.5×10-8m3/kg,变化范围为:(15~58.6)×10-8m3/kg。
短句来源
     EC50 of penconazole ranged from 0.007 to 3.590 μg/mL with an average value of 0.644μg/mL;
     戊菌唑的EC50值在0.007~3.590μg/mL之间,平均为0.644μg/mL;
短句来源
     The dry weight of phytoplankton(DWP) was 4.62-(12.33) mg/L,with the average value of 8.15 mg/L.
     浮游植物干重(DWP)为4.62~12.33 mg/L,平均为8.15 mg/L;
短句来源
     UV254 average value was 0.015cm-1,average removal rate 68.68%;
     UV254的平均值为0.015cm-1,平均去除率为68.69%;
短句来源
     NH3-N average value was 0.449mg/L,average removal rate 73.9%;
     NH3-N平均值为0.449mg/L,平均去除率为73.90%;
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  平均价值
     The results show that the average value of Xinjang's grassland ecosystem is $71.32×10~8 each year;
     结果显示,新疆草地系统年平均价值为71.32×108美元;
短句来源
     The Average Value,Distribution andMarginal Value of Forest
     森林的平均价值、分布和边际价值
短句来源
     The paper dealt with the defect of present value accounting,discussed the average value,distribution and marginal value of forest and pointed out the problems of ecological construction that should be paid attention to.
     针对当前价值核算的不足 ,讨论了森林的平均价值、分布以及边际价值 ,并指出了当前的生态建设应注意的问题
短句来源
     The approach of improvement of TDCAM is undertaken in light with the following procedure,namely,the optimal allocation of forest resources is made by equal marginal utility ac-cording to the principle of economics,the total environmental value of forest resources is inte-grated into environmental marginal utility value,and unit environmental value of forest resources is priced by average value transferred from direct marginal utility value according to the princi-ple of public goods.
     改进后的方法采用经济学中的边际效用相等的原理确定森林资源的最佳分配,森林资源的环境价值总量等于边际效用价值的积分,单位环境价值根据公共产品特点采用直接边际效用价值转换成平均价值定价。
短句来源
     moreover, timber market price and cost price which can reflect fundamentally the average value of society are conuted, and feasibilities are analysed.
     同时采用大量的调查统计数据,计算了基本上能反映社会平均价值量的林木市场价和林木费用价,并作了可行性分析;
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      average value
    The resulting average value of the Avrami exponent at n = 3.34 suggests that primary crystallization may correspond to a three-dimensional spherulitic growth.
          
    An isoconversional procedure developed by Ozawa is used to calculate the apparent activation energy (E), which is an average value of about 260 kJ/mol with the weight conversion from 0% to 30%, and is higher than that of neat PET.
          
    Electrooptical methods of studying disperse systems make it possible to determine the average value of the shape factor of colloidal particles approximated by ellipsoids of revolution.
          
    It is concluded that the growth of thickness of these layers is primarily caused by the spread of the beam energy density from pulse to pulse and by the presence of individual pulses with a higher-than-average value of energy density.
          
    Coefficients of the first and higher orders of asymptotic expansion correspond to corrections to the average value of temperature and describe the radial distributions of temperature in the well.
          
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    By surrounding a photo-neutron source of Ra+Ee with a thin spherical sbell of paraffin, a continuous spectrum of scattered neutrons, extending from zero energy to the energies of the primary neutrons is obtained. When a silver detector is exposed to such a spectrum, a part of the neutrons having just the energies at resonance with the silver nuclei is strongly absorbed by the detector and thereby produces the induced β-activity. By measuring the activity of silver and the apparent absorption coefficient of the...

    By surrounding a photo-neutron source of Ra+Ee with a thin spherical sbell of paraffin, a continuous spectrum of scattered neutrons, extending from zero energy to the energies of the primary neutrons is obtained. When a silver detector is exposed to such a spectrum, a part of the neutrons having just the energies at resonance with the silver nuclei is strongly absorbed by the detector and thereby produces the induced β-activity. By measuring the activity of silver and the apparent absorption coefficient of the resonance neutrons in a thin silver absorber, the total width of the resonance levels effective to neutron capture and located in the above spectrum is estimated. Let τ He the average value of one half of the half-value width of the resonance levels, expressed in volts, and n be the number of resonance levels here concerned. We find nτ=260 volts for the silver nuclei of half period 22" if the energies of the primary neutrons are taken to be 2x 105 volts. Knowing nτ, we can evaluate the average spacing between adjacent resonance levels effective to neutron capture by giving a plausible value to τ. We find a spacing of the order 80-800 volts if τ be given the value 0.1-1.0 volt. This result is in good accord with the recent theoretical calculation of Bethe and also with observations of resonance groups in the low energy region.

    把‘镭—铍’所产生的‘光中子’,穿过一层半厘米厚的白蜡,我们便得到一‘连续的中子谱’。他们中间有些中子,能和银的原子核起‘共振作用’,因此可以被银片吸收,而产生‘人工放射银’先测量人工放射的强度和‘共振中子’在银片中的吸收率,再应用原子核内共振能层的宽度,我们便可以求出银的原子核内‘共振能层’的密度大约共振能在零和二十万伏特中间,平均每隔一二百伏特便有一可以吸收质子的共振能层,和理论很相符合。

    The properties of the Kendir fiber tested include the fiber fineness, tenacity, breaking strength and elongation, moisture regain, and fiber length. The material used was acquired from Sin-kiang for an experimental purpose. The testing results are as follows: average value of fiber fineness 1416 metric count; breaking length, 54.36 km., moisture regain at 9℃ and 75% R.H., 5.94%. Under 20.5℃ and 70% R.H., the specific index of double refraction of the fiber is 0.0690 and that of the ramie fiber, 0.0675....

    The properties of the Kendir fiber tested include the fiber fineness, tenacity, breaking strength and elongation, moisture regain, and fiber length. The material used was acquired from Sin-kiang for an experimental purpose. The testing results are as follows: average value of fiber fineness 1416 metric count; breaking length, 54.36 km., moisture regain at 9℃ and 75% R.H., 5.94%. Under 20.5℃ and 70% R.H., the specific index of double refraction of the fiber is 0.0690 and that of the ramie fiber, 0.0675. In the experiment sodium light is used. Some photographs including staple diagram, length distribution diagram and micro-photographs are attached.

    本文对罗布蔴的一些基本的机械物理性质进行了试验,包括纤维的细度、长度、断裂强力与伸长、吸湿率。罗布蔴纤维的双折射也在本文中列出,并与苧蔴纤维的双折射进行了比较。文中并附有纤维的加权长度分布图、纤维排列图及显微镜照相图。

    In a study on the effects of a series of centrally active agents on the nucleic acid contents of animal brains, we have determined the normal contents of RNA and DNA in the brains of mice, rats and rabbits by a method of two-wavelength spectrophotometry. This paper presents the results thus obtained in comparison with the values estimated for the same tissue samples as determined simultaneously by the methods of single-wavelength spectrophotometry and colorimetry following orcinol or diphenylamine reaction.In...

    In a study on the effects of a series of centrally active agents on the nucleic acid contents of animal brains, we have determined the normal contents of RNA and DNA in the brains of mice, rats and rabbits by a method of two-wavelength spectrophotometry. This paper presents the results thus obtained in comparison with the values estimated for the same tissue samples as determined simultaneously by the methods of single-wavelength spectrophotometry and colorimetry following orcinol or diphenylamine reaction.In spectrophotometry, the O. D. of RNA and DNA was determined at 260 and 268mμ respectively. The second wave length (λ_) selected for the estimation of RNA was 284.25mμ for mice and rats brain samples and 285mμ for rabbits, and that for DNA was respectively 281.5 and 282.5mμ.The constants used for calculation were:e(p)_(260) of RNA=6915, e(p)_(268) of DNA=9006; r-value of RNA=2.09 (mice, rats) and 2.24 (rabbits), r-values of DNA=1.46 and 1.58 respectively; K_(RNA)=860(mice,rats) and 809 (rabbits), K_(DNA)=1090 and 936 respectively.The results of determination by the two-wavelength method were the following:The average value for RNA in mice brain determined in 4 series of experiments on 37 animals ranged from 99.5 to 108.0mg P/100gm dry tissue; DNA ranged from 89.9-95.7mg P% and the RNA/DNA ratios from 1.06-1.15. ENA in rabbit brains ranged between 58.4-70.4 mg P%; the values for DNA were 38.3-44.1mg P% and the RNA/DNA ratios were 1.53-1.60. The average RNA content of 3 rat brains was 90.1 mg P%; DNA was 64.2 mg P% and the RNA/DNA ratio was 1.40.A comparison of our own results determined by three diffe(?)ent methods and also with values reported by others showed that determination of nucleic acid contents of the brain by Schmidt-Thannhauser and Schneider precedures was seriously interfered by contaminants. In the case of spectrophotometry the contaminants interfered mainly the determination of RNA; This interference may be eliminated to a great extent by an application of the two-wavelength method.

    为了观察一些中枢神经系统药物对脑内核酸含量的影响,首先采用Tsanov等的双波长分光法测定了正常小鼠、大鼠和家兎全脑的核酸含量,并和单波长分光法及戊糖反应的比色法比较。用分光法测定RNA和DNA含量时所用波长分别为260及268mμ,在用双波长法测定RNA含量时选用的第二波长为284.25(小鼠,大鼠)和285mμ(家兎),测定DNA含量时的第二波长为281.5(小鼠,大鼠)和282.5mμ(家兎)。计算中需要的几个常数是:RNA的ε(p)_(260)=6915,DNA的ε(p)_(268)=9006;RNA的γ值为2.09(小鼠,大鼠)和2.24(家兎),DNA的γ值为1.46(小鼠,大鼠)和1.58(家兎);K_(RNA)为860(小鼠, 大鼠)和809(家兎),K_(DNA)为1090(小鼠,大鼠)和936(家兎)。用双波长法测定的4批实验37只小鼠脑内RNA含量为99.5—108.0毫克P/100克干燥组织,DNA含量为89.9—95.7毫克P%,RNA/DNA此值为1.06—1.15。6只家兎2批实验的结果,RNA含量为58.4—70.4毫克P%,DNA合量为38.3—44.1毫克P%,RNA/DN...

    为了观察一些中枢神经系统药物对脑内核酸含量的影响,首先采用Tsanov等的双波长分光法测定了正常小鼠、大鼠和家兎全脑的核酸含量,并和单波长分光法及戊糖反应的比色法比较。用分光法测定RNA和DNA含量时所用波长分别为260及268mμ,在用双波长法测定RNA含量时选用的第二波长为284.25(小鼠,大鼠)和285mμ(家兎),测定DNA含量时的第二波长为281.5(小鼠,大鼠)和282.5mμ(家兎)。计算中需要的几个常数是:RNA的ε(p)_(260)=6915,DNA的ε(p)_(268)=9006;RNA的γ值为2.09(小鼠,大鼠)和2.24(家兎),DNA的γ值为1.46(小鼠,大鼠)和1.58(家兎);K_(RNA)为860(小鼠, 大鼠)和809(家兎),K_(DNA)为1090(小鼠,大鼠)和936(家兎)。用双波长法测定的4批实验37只小鼠脑内RNA含量为99.5—108.0毫克P/100克干燥组织,DNA含量为89.9—95.7毫克P%,RNA/DNA此值为1.06—1.15。6只家兎2批实验的结果,RNA含量为58.4—70.4毫克P%,DNA合量为38.3—44.1毫克P%,RNA/DNA此值为1.53—1.60。3只大鼠的平均结果,RNA含量为90.1毫克P%,DNA含量为64.2毫克P%,RNA/DNA比值为1.40。将我们所用三种方法测得的结果相互比较,并和其他作者用不同方法测定的结果相比较,表明用Schmidt-Thannhauser法和Schneider法测定脑内核酸含量时杂质的影响很大。在分光测定时杂质的影响主要存在于RNA的部分,双波长分光法可以消除杂质的影响。

     
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