lower sample 中文意思是什麼

lower sample 解釋
底層試樣
  • lower : adj 〈low 的比較級〉1 較低的。2 下級的,低級的。 lower animals 下等動物。3 南部的。 in lower Manh...
  • sample : n 1 樣品,貨樣。2 標本;榜樣,實例。3 【統計】典型取樣,抽檢查。4 【電訊】信號瞬時值。5 【冶金】 ...
  1. A sample so irradiated shows a somewhat lower ignition temperature.

    這樣照射后的試樣,爆發點有所降低。
  2. Abstract : soil incubation experiments were conducted in lab to delineate the effect of soil temperature and soil water content on soil respirations in broad - leaved / korean pine forest ( mountain dark brown forest soil ), dark coniferous forest ( mountain brown coniferous forest soil ) and erman ' s birch forest ( mountain soddy forest soil ) in changbai mountain in september 2001. the soil water content was adjusted to five different levels ( 9, 21, 30, 37 and 43 ) by adding certain amount of water into the soil cylinders, and the soil sample was incubated at 0, 5, 15, 25 and 35 for 24 h the results indicated that in broad - leaved / korean pine forest the soil respiration rate was positively correlated to soil temperature from 0 to 35. soil respiration rate increased with increase of soil water content within the limits of 21 to 37, while it decreased with soil water content when water content was over the range. the result suggested the interactive effects of temperature and water content on soil respiration. there were significant differences in soil respiration among the various forest types. the soil respiration rate was highest in broad - leaved / korean pine forest, middle in erman ' s birch forest and the lowest in dark coniferous forest. the optimal soil temperature and soil water content for soil respiration was 35 and 37 in broad - leaved / korean pine forest, 25 and 21 in dark coniferous forest, and 35 and 37 in erman ' s birch forest. because the forests of broad - leaved / korean pine, dark coniferous and erman ' s birch are distributed at different altitudes, the soil temperature had 4 - 5 variation in different forest types during the same period. thus, the soil respiration rates measured in brown pine mountain soil were lower than those in dark brown forest and those measured in mountain grass forest soil were higher than those in brown pine mountain soil

    文摘:為了研究土壤溫度和土壤含水量對闊葉紅松林(山地暗棕壤) 、雲冷杉暗針葉林(山地棕針葉林土壤)和岳樺林(生草森林土)的土壤呼吸的影響,於2001年9月在長白山進行了土壤實驗.利用增加土壤樣柱的含水量,將土壤含水量分為9 , 、 21 、 30 、 37和43 5個等級,土壤樣品分別在0 、 5 、 15 、 25和35的溫度下保持24小時.闊葉紅松林土壤在0 ( 35范圍內,土壤呼吸速率與溫度呈正相關.在一定的含水量范圍內( 21 ( 37 ) ,土壤呼吸隨含水量的增加而升高,當含水量超出該范圍,土壤呼吸速率則隨含水量的變化而降低.土壤溫度和水分對土壤呼吸作用存在明顯的交互作用.不同森林類型土壤呼吸作用強弱存在顯著差異,大小順序為闊葉紅松林>岳樺林>雲冷杉暗針葉林.紅松闊葉林土壤呼吸作用的最佳條件是土壤溫度35 ,含水量37 ;雲冷杉暗針葉林下的山地棕色針葉土壤呼吸作用的最佳條件是25 , 21 ;岳樺林土壤呼吸作用的最佳條件是35 ,含水量37 .但是,由於長白山闊葉紅松林,雲冷杉林和岳樺林處在不同的海拔帶上,同期不同森林類型土壤溫度各不相同,相差4 ~ 5 ,所以野外所測的同期的山地棕色針葉林土呼吸速率應低於暗棕色森林土呼吸速率,山地生草森林土呼吸速率應高於山地棕色針葉林土的呼吸速率.圖2表1參25
  3. Soil incubation experiments were conducted in lab to delineate the effect of soil temperature and soil water content on soil respirations in broad - leaved / korean pine forest ( mountain dark brown forest soil ), dark coniferous forest ( mountain brown coniferous forest soil ) and ermans birch forest ( mountain soddy forest soil ) in changbai mountain in september 2001. the soil water content was adjusted to five different levels ( 9, 21, 30, 37 and 43 ) by adding certain amount of water into the soil cylinders, and the soil sample was incubated at 0, 5, 15, 25 and 35 for 24 h the results indicated that in broad - leaved / korean pine forest the soil respiration rate was positively correlated to soil temperature from 0 to 35. soil respiration rate increased with increase of soil water content within the limits of 21 to 37, while it decreased with soil water content when water content was over the range. the result suggested the interactive effects of temperature and water content on soil respiration. there were significant differences in soil respiration among the various forest types. the soil respiration rate was highest in broad - leaved / korean pine forest, middle in ermans birch forest and the lowest in dark coniferous forest. the optimal soil temperature and soil water content for soil respiration was 35 and 37 in broad - leaved / korean pine forest, 25 and 21 in dark coniferous forest, and 35 and 37 in ermans birch forest. because the forests of broad - leaved / korean pine, dark coniferous and ermans birch are distributed at different altitudes, the soil temperature had 4 - 5 variation in different forest types during the same period. thus, the soil respiration rates measured in brown pine mountain soil were lower than those in dark brown forest and those measured in mountain grass forest soil were higher than those in brown pine mountain soil

    為了研究土壤溫度和土壤含水量對闊葉紅松林(山地暗棕壤) 、雲冷杉暗針葉林(山地棕針葉林土壤)和岳樺林(生草森林土)的土壤呼吸的影響,於2001年9月在長白山進行了土壤實驗.利用增加土壤樣柱的含水量,將土壤含水量分為9 , 、 21 、 30 、 37和43 5個等級,土壤樣品分別在0 、 5 、 15 、 25和35的溫度下保持24小時.闊葉紅松林土壤在0 ( 35范圍內,土壤呼吸速率與溫度呈正相關.在一定的含水量范圍內( 21 ( 37 ) ,土壤呼吸隨含水量的增加而升高,當含水量超出該范圍,土壤呼吸速率則隨含水量的變化而降低.土壤溫度和水分對土壤呼吸作用存在明顯的交互作用.不同森林類型土壤呼吸作用強弱存在顯著差異,大小順序為闊葉紅松林>岳樺林>雲冷杉暗針葉林.紅松闊葉林土壤呼吸作用的最佳條件是土壤溫度35 ,含水量37 ;雲冷杉暗針葉林下的山地棕色針葉土壤呼吸作用的最佳條件是25 , 21 ;岳樺林土壤呼吸作用的最佳條件是35 ,含水量37 .但是,由於長白山闊葉紅松林,雲冷杉林和岳樺林處在不同的海拔帶上,同期不同森林類型土壤溫度各不相同,相差4 ~ 5 ,所以野外所測的同期的山地棕色針葉林土呼吸速率應低於暗棕色森林土呼吸速率,山地生草森林土呼吸速率應高於山地棕色針葉林土的呼吸速率.圖2表1參25
  4. One - sided reliability confidence lower limit normal distribution complete sample

    正態分佈完全樣本可靠度單側置信下限
  5. ( 3 ) left lower limb was used to prepare artery ( red ) and vein ( blue ) color cast specimens using perchloroethylene. ( 4 ) deep freezed right lower limb sample, injecting red gelatin into femoral artery, forward and backward injecting blue latex with barium sulfate into femoral vein and great saphenous vein, cuting flap after dealing with formalin and get x - ray photos

    ( 3 )採用1例新鮮屍體左下肢標本制備過氯乙烯動(紅) 、靜(藍)脈分色鑄型標本。 ( 4 )右下肢冷藏標本,于股動脈灌注紅色乳膠,再於股靜脈及大隱靜脈順、逆行灌注含硫酸鋇混懸液之藍色乳膠,福爾馬林防腐,然後切取皮瓣,攝取x線片。
  6. Because the concentration of zirconium in uranium has large ranges, from 1. 50xlo ' 6 - 3. 8g / gu, not only how to decrease the remainder of uranium to eliminate its determinate effect but also how to acquire higher recovery of zirconium is considered, so the method of silica gel, the method of tbp levextrel resin chromatography, the method of tta chromatography and the method of tta extraction are compared. then tta extraction is chosen to acquire the ideal separation purpose. compared with icp - ms and icp - aes, xrf has characters of high repeatability, stability, low cost, high concentration elements analysis, the ability to determinate solid sample and having comprehensive practicability, but xrf has lower sensitivity, so how to increase the concentration of the sample to acquire better precision is a difficult problem, the optimum of operating condition : the integral time of spectral lines is 60s, the integral time of background lines is 20s, the voltage of xrf is 50kv, the electric current is 50ma

    由於鈾中鋯的含量范圍很廣,從1 . 50 10 ~ ( - 6 ) 3 . 8g / gu ,在分離和測量時,既要考慮盡量地減少鈾的殘留量以消除鈾對鋯測量產生的影響,又要獲得鋯的理想的回收率,因此本文在分離方法的選擇上比較了硅膠吸附分離法, cl - tbp萃取色層法, tta萃取色層法和tta萃取分離法的優缺點,認為tta萃取分離法可以達到理想的分離效果。
  7. In this paper, a new control strategy based on the adaptive deadbeat voltage space vector is presented. this control scheme has a lower sample frequency and a smaller difference between switch frequency and sample frequency. it has many advantages, such as producing zero vectors organically, tracing exactly, non - shaking, etc. and its dynamic response is better

    對于電能質量調節器來講, pwm跟隨指令參考信號的控制性能在很大程度上影響著裝置的補償效果,本文選擇無差拍電壓空間矢量控制為系統控制策略,這種控制方法具有采樣頻率低,開關頻率與采樣頻率的差距小,能有機地產主零矢量、跟蹤精確以及無抖振等優點,動態響應快。
  8. The bottleneck of hybrid filter banks adc system is that it cannot sample directly higher radio frequency signal because of lower analog input bandwidth of its adc. in order to remove it, a kind of downsampler model based on nyquist and bandpass sampling theorem is presented, analyzed and proved in time and frequency domain, in addition a downsampler is designed according to the model. on the basis of hybrid filter banks adc system, a class of high speed hybrid filter banks adc system is proposed

    針對混合濾波器組adc系統因其adc模擬輸入帶寬低而不能對頻率較高的射頻模擬信號進行模/數轉換的瓶頸,作者提出了一種基於nyquist采樣定理和帶通采樣定理的抽取器數學模型,對該數學模型進行了時域、頻域的分析證明后,設計了一種基於該數學模型的sha抽取器,進而在混合濾波器組adc系統的基礎上,提出了高速混合濾波器組adc系統。
  9. The differences in orbital morphologies due to different potentials is slighting, however, given a certain potential, for clusters that have perigalactic distance smaller than 1 kpc, some orbits may exhibit a chaotic behavior. the correlation between the metallicity of samples and the orbital morphologies is unclearly ; ( 4 ) it is found that the semi - major axis, apogalactic distance and azimuth period of 29 sample clusters are changed with their metallicity similarly, but a obvious correlation is seen between orbital eccentricity and metallicity. there is a fraction of 24 % of the sample clusters with eccentricities lower than 0. 4

    不同的引力勢模型對球狀星團軌道的具體形態影響不大,在給定的引力勢模型下,當某些星團的運動軌道穿越距銀心1kpc附近的區域時會出現「混沌」現象: ( 4 ) 29個樣本星團的軌道半長軸、遠銀心距和方位周期隨金屬度的變化規律基本相似,樣本星團的金屬度與其軌道形態之間的相關性並不明顯,然而軌道偏心率與金屬度有關,對于所選的暈族樣本星團而言,大約有24的樣本星團的軌道偏心率低於0 . 4 。
  10. As testing result indicated that the concentration of benzene in the sample would be lower when benzene was released from it gradually, customs and excise department advised consumers to unpack the purchased goods and expose them in the open air for at least a week before using it indoor

    由於測試結果顯示苯成份水平會隨著揮發而漸見減少,因此海關提醒消費者,在購買塑膠軟地墊時,應在拆封後置于戶外通風處最少一星期才移至戶內使用。
  11. Abstract : on the basis of the theory of controlled phase - changes of piezoceramics, high - temperature polarizing technology makes initial working temperature a little higher than curie temperature of a sample, but the polarization voltage needed is greatly lower than the one needed in normal polarization ( only 1 / 10 - 1 / 5 ). the improved polarizing technology can make polarization more complete

    文摘:壓電陶瓷的高溫極化是利用受控的場致有序化的順電鐵電相變原理,使起始極化溫度略高於樣品的居里溫度,但所需的極化電壓大大低於常規極化,僅為1 / 10 - 1 / 5 ;選擇較高的降溫升壓速率,可使極化趨于更加完全,具有常規極化工藝無可比擬的優越性。
  12. The surface panel method has been applied to predict the hydrodynamic performance of highly skewed propeller. the surface of propeller and its trailing vortex are discreted by a number of small hyperboloidal quadrilateral panels with constant source and doublet distribution. for highly skewed propeller, the conventional method generating grid oriented along constant radii will result in a high aspect ratio and a high skewness and a twist panel near the propeller tip on blade surface, which result easily in incorrect calculation results of velovity on blade surface, even in iteration divergence and calculation failure. a “ non - conventional grid ” is developed to acoid these problems. this grid can effectively solve the problem of the calculation and convergence for highly skewed propeller. the non - linear kutta condition of equal pressure on upper and lower at the trailing edge is executed by the iterative procedure. by sample calculating, the obtained results are satisfied the experimental data

    採用面元法預報大側斜螺旋槳水動力性能,螺旋槳表面及尾渦面離散為四邊形雙曲面元,每個面元上布置等強度源匯和偶極子分佈.對于大側斜螺旋槳而言,槳葉表面採用常規的等半徑網格劃分方法在近葉梢處將導致大展弦比、大側斜和扭曲面元,這容易使槳葉表面速度的計算結果不正確,甚至會導致迭代過程發散及計算失敗.文中建立了一種「非常規網格」劃分方法,能有效地解決大側斜螺旋槳的計算和收斂問題.槳葉隨邊處通過迭代實現非線性等壓庫塔條件
  13. The study found statistical support was the greatest for the presence of four different groups within the sample : these groups included girls with higher blood pressure and waist circumference alues ; girls with higher leels of triglycerides and lower leels of hdl cholesterol ; girls with more desirable alues on all of the metabolic syndrome indicators, and girls with more undesirable alues on all of the indicators

    研究發現這些病例中有四類的數據支持最為充分:包括高血壓和大腹圍;甘油三酯偏高和高密度脂蛋白膽固醇偏低;代謝綜合征的所有指征均符合要求;及並非所有指征均符合要求。
  14. Because of decrement in pesticide use, from 1999 - 2001, the poisoning probability caused by pesticides use for farmers who plant bt cottonseeds is respectively 17 %, 22 % and 4 % lower than those who plant non - bt cottonseeds, with an average number of 11 % in this three years. meanwhile, bt cotton planting farmers in yellow river watershed and changjiang river shed saved 48. 4 yuan and 107. 8 yuan per time in pesticide and wage losing cost, with the average of 68 in sample areas

    中岡農業和學院博卜學泣論文中英義摘芙山于農戶大幅度減少了衣藥投入, 1999 2001年調查的種植bt抗蟲棉的農戶發生農藥中毒的概率分別要比種植非bt棉的農戶低17見2肌和4 「三年總平均要低11以同時按照樣本所在棉區計算的bt棉種植農戶相應節約的農藥和誤工費用分別為黃河流域棉區48
  15. If the fewer the remains of sodium sulfite in water sample and the lower the water treatment expenditure are, the better the judge criterion is ; cabaltous sulfate catalyzing sodium sulfite is the most applicable deoxidant used for the vapor injection boiler water

    若按處理后水樣中亞硫酸鈉的殘余量和噸水處理費用越少越好為衡量標準,硫酸鈷催化亞硫酸鈉除氧劑是最適合用作油田注汽鍋爐用水除氧的除氧劑。
  16. In the fourth chapter the pl and ftir spectra of porous silicon as - prepared and stored in atmosphere for one month were measured. the formers " pl only had single peak with lower energy while the latter appeared double peaks with a higher energy. through comparing the ftir spectra of the two samples we found si - o - si and o - si - h bonds appeared in the ftir spectra of the latter sample

    新制備的多孔硅樣品只有能量比較小的熒光單峰,存放一段時間后的多孔硅樣品則出現了雙峰;在紅外光譜中原來存在的si一h : 、 si一h 、強度逐漸變弱,出現了對應于si一o一si 、 o一si一h的新峰。
  17. Conclusion : the optimal pool size in the present study can obtain satisfactory testing power ( type and type errors are both lower than 5 % ) and can effectively decrease the pooled sample size

    結論:利用本文給出的最優混合樣本和檢測步驟,在獲得比較滿意的檢驗功效(兩類錯誤概率均低於5 % )的同時,可以有效降低檢測次數。
  18. The present research subject also touches upon the effect of slipping the upper and lower clamping mouths on the test results in the process of sample testing

    本課題中還探討了在試件檢測過程中上、下夾口處滑移對檢測結果影響的問題。
  19. It was found from the experiment that, with the increasing of substrate temperature, there were more oxygen vacancies in the films, which lead the conductance of the sample become larger, and the absorb edge of zno thin films shifted toward higher wavelength ; with increasing of ar : o2 ratio, there were lesser oxygen vacancies in the films, which lead the absorb edge of zno thin films shifted toward lower wavelength

    實驗還發現,隨著襯底溫度的升高,薄膜中產生的氧空位將會增多,使得zno薄膜的電導逐漸增大,而且其紫外透射吸收截止邊帶向高波長方向漂移;隨著氬氧比例的增加,薄膜中的氧缺陷相對減少,薄膜的透射吸收截止邊向低波長方向漂移。
  20. It was found from the experiment that, with the increasing of substrate temperature, there were more oxygen vacancies in the films, which lead the conductance of the sample become larger, and the absorb edge of ito thin films shifted toward lower wavelength ; with increasing of ar : o2 ratio, there were lesser oxygen vacancies in the films, which lead the absorb edge of ito thin films shifted toward lower wavelength

    實驗還發現,在一定的溫度范圍內隨著襯底溫度的升高,薄膜中產生的氧空位將會增多,使得ito薄膜的電導逐漸增大,而且其紫外透射吸收截止邊帶向短波長方向漂移;隨著氬氧比例的增加,薄膜中的氧缺陷相對減少,薄膜的透射吸收截止邊向低波長方向漂移。
分享友人