sample weight 中文意思是什麼

sample weight 解釋
試樣重量
  • 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】 ...
  • weight : n 1 重量;體重;求心力,重力,(地心)引力。2 斤兩,分量,衡,計重單位。3 (壓東西的)重物。4 砝...
  1. Through cultivating the cochineal in 4 counties which belonging to tropical, south sub - tropical and mid sub - tropical zones, the life tables of the cochineal in each county are established and the survival percentage of each stage as well as the key factor of death in each climate type is studied. in the meantime, the sample of the cochineal of each county is collected to test the size, eggs and weight, through comparing these biological index, the best zones, better zones and other zones for cultivation of the cochineal are pointed out. on the basis of above study, the zones for cultivating the cochineal are marked out in yunnan province

    在雲南熱帶、南亞熱帶、中亞熱帶三個氣候類型下的4個縣(市)放養胭脂蟲,應用生命表技術,研究各氣候類型下胭脂蟲的存活情況並分析出各氣候類型下胭脂蟲的主要致死因子,同時,採集各地培育的胭脂蟲樣品測定蟲體大小、懷卵量及重量,通過比較這些生物學指標,得出胭脂蟲的最適生區、次適生區及適生區,並以此為依據,對雲南省胭脂蟲的培育進行了區劃。
  2. When this weight difference is divided by the total volume of the sample, the particulate loading cmv is found.

    重量差除以試樣總體積,即得顆粒負載Cmv
  3. Determination of end carboxyl content in pet chip using photometric method was discussed, the optimiza tion of measuring condition and parameters such as sample weight, concentration of titrant, blank of solvent were stud ied

    論述採用光度法測定聚酯切片的端羧基,對稱樣量、滴定劑的濃度、溶劑的空白等測試條件和參數進行優化選擇。
  4. This dissertation ' s problem just comes from this engineering background exactly. for this two kinds of cores, which were taken from the engineering place, this dissertation draws sample by computer and analyses the weight distributions, getting the weight curves, the middle weights, asymmetry coefficients and other physics characteristic indexes of them, and makes up the model samples which are similar to the factual weight distributions

    本文對施工現場採用的10 100kg和1 800kg重量范圍的堤心石進行了隨機抽樣和重量級配分析,得到了描述這兩種堤心石類別的重量級配曲線、中值重量、不均勻系數等物理特性指標,並由此制備重量級配相似的模型樣本。
  5. The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film

    試驗結果表明:所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求;聚四氟乙烯樹脂熱分解溫度超過400 ,但在ptfe中加入無機填料會使復合材料吸水率提高,熔融溫度及分解溫度降低,且伴有氧化分解反應;碳纖維表面含有c = o及c - o - c等極性基團,有利於提高其與其它組分的相容性,提高層間剪切強度;均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系,擬合曲線基本能表示各配方的摩擦系數發展趨勢;配方中不加銅粉或不加石墨,其摩擦系數均較高,說明銅粉和石墨應該配合使用;當銅粉15份、石墨60份時,銅粉30份、石墨30 - 40份時,銅粉60 、石墨15 - 30份時,摩擦系數均具有較低值;純聚四氟乙烯樹脂在空氣冷卻時結晶度最大,磨損量也是三者中最大的;同時,固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的:不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副,在金屬表面均可形成潤滑轉移膜,從而減少金屬摩擦副表面間的直接接觸,大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。
  6. In order to measure the contribution of the index in distinguishing the sample classification, this paper defined the concept of index ' s categorization weight, point out the difference in such aspects as concept, properties, determining method, and application between the categorization weight and the importance weight of the index

    摘要為了度量指標對區分樣本類別所作貢獻的大小,本文定義了指標分類權重的概念,論述了指標分類權重與指標重要性權重在概念、性質、確定方法及用途等方面的區別。
  7. Before the bp neural net forecast fire size class, it needs a process of studying from sample data. the neural net adjusts the weight value and threshold value according to the sample so as to give the linking weight value and threshold to low the difference between output from itself and the expected value

    Bp網路在應用於預測預報之前,需要一個網路學習過程,網路根據輸入的訓練(學習)樣本進行自適應、自組織,確定各神經元的連接權w和閾值。
  8. In connection with the difference and distribution characteristic of the samples in sample space rs based on dga, a new self - adapted weight fuzzy omean clustering model of fault diagnosis of the power transformer based on the potential function is proposed. meanwhile, from the aspect of geometry characteristic of fc - divided in s dimension sample space, a method is proposed for the purpose of getting an effective adjacent radius, adaptive cluster number c and original cluster center of x sample set. for the diagnosis sample x, the property measure and diagnosis rule are proposed, which under the condition of potential density function that determine c number of optimal fuzzy cluster p1

    根據以變壓器dga數據為特徵量的樣本空間各樣本差異特性以及樣本在空間r ~ s的分佈特性,首次提出了基於勢函數自適應加權的變壓器絕緣故障診斷的模糊c -均值聚類模型;同時,從s維樣本空間的f ~ c -劃分幾何特性出發,提出了一種求取樣本集的類勢有效鄰域半徑和自適應求取聚類數和聚類中心初值的方法;對一個待診斷樣本,設計了基於類勢密度函數意義下的屬性測度和診斷準則。
  9. A material sample with a grain size ranging from 0, 6 1, 18 mm and a weight of 50 g is ground in accordance with stipulated conditions and with a stipulated mode of operation

    一個06118毫米大小的樣品顆粒在給定的條件下和按照給定的規格被測試可碾磨性儀器碾磨。
  10. At last, we complete the sample machine. this sample machine has more simple structures, less components stabilized, less weight, smaller volume, higher precision of stabilization with the new optical image - stabilization system

    在導引頭的原理樣機中,採用新的光學穩象系統后,系統結構精簡,被穩元件數目減少,重量減輕,體積減小,穩定精度也有所提高。
  11. When this weight difference is divided by the total volume of the sample, the particulate loading cmv is found

    重量差除以試樣總體積,即得顆粒負載cmv
  12. The ultraviolet absorbance of the extraction liquid didn ' t relate to the sample weight or the extracted time

    化探樣萃取液的紫外吸光度與萃取時間及稱樣量關系不大。
  13. ( 4 ) preparation of sample of grain moisture measurement, design and implement of project, analysis of data which affect moisture measurement. the relationship of moisture, difference frequency, temperature and weight is pointed out

    ( 4 )糧食水分檢測樣本的制備,數據採集方案的設計及具體實施,最後通過對影響水分檢測各因素之間的數據分析,指出了水分與差頻、溫度、緊實度之間的關系。
  14. Filling the cylinder with lead shot to simulate a sample ' s weight

    圓柱裏面灌鉛,以模擬樣本的重量。
  15. This method utilizes an on - line algorithm based upon lssvm ( least square support vector machine ), which can build adaptive models to predict the cod values of unknown water samples quickly and accurately. in the modeling process, every training sample is also assigned a prior weight to take their significance to the final predictive model into account

    該方法是一種基於最小二乘支持向量機的在線自適應加權演算法,這種演算法可以自適應地選取和未知水樣最相近的標準樣本進行建模,同時在建模中又利用加權的方法分別考慮了各個標準樣本重要性。
  16. People s face look like the sample of the hungry stomach, but has not seen one pangzi either, pangzi that the weight that china s domestic street is seen everywhere went beyond the normal condition, the mark that seem definitely here

    人們的臉色看上去也不像餓肚子的樣子,但也沒有見到一個胖子,中國國內街上隨處可見的體重超常的胖子,在這里似乎絕了跡。
  17. Pedestrians at the street dress relatively clean, only design s dull somes, wear leather shoes little people, almost all the persons wear bule rubber overshoes. people s face look like the sample of the hungry stomach, but has not seen one pangzi either, pangzi that the weight that china s domestic street is seen everywhere went beyond the normal condition, the mark that seem definitely here

    街上的行人穿得比較乾凈,只是花色單調了一些,尤其是穿皮鞋的人少,幾乎所有的人都穿藍色膠鞋。人們的臉色看上去也不像餓肚子的樣子,但也沒有見到一個胖子,中國國內街上隨處可見的體重超常的胖子,在這里似乎絕了跡。
  18. A rapid method to determine the total ginsenoside in panax notoginseng for the genotype selection has been established in this study through the investigation of the best treatments covering sample weight, ultrasonic time, granularity, ultrasonic power, reagent, reagent bulk

    摘要研究了超聲波提取三七總皂苷的影響因素,篩選出超聲波提取三七總皂苷的最佳條件,並建立了利用紫外分光光度法快速測定三七總皂苷的方法。
  19. It was proved that the method was easy - to - operate and samples produced were homogeneous in quartz content, controllable in sample weight and compliant in particle size distribution with that collected from workplaces. the samples can be used in round - robin tests on quartz determination between laboratories and in verification of different methods for quality control

    經測試表明:該方法操作簡便,制備的呼吸性粉塵樣品石英含量均勻,樣品質量可控制,粉塵粒度分佈和現場樣品一致,適用於實驗室間或不同方法之間的石英含量比較性研究和質量控制。
  20. The sample weight, the microwave power, pressure and time used for digesting the sample were studied in detail and optimized

    在樣品處理中也採用了常規溶樣方法,並分別用兩種樣品處理方法測定石油焦中的硅。
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