sample average 中文意思是什麼
sample average
解釋
取樣平均值-
The average composition for our sample is different in some ways from the ci chondrite meteorites : namely we found more zinc, gallium, and copper, and less sulfur
我們樣品的平均成分水平在某些方面與ci球粒隕石不同：即我們發現有較多的鋅、鎵和銅及較少的硫。 -
High deposit temperature leads to transmission falling of the unannealed films. but the average transmission of sample deposited at 500 is higher than that at 450
未經退火的薄膜透過率隨沉積溫度升高而呈現下降的趨勢，但500樣品比450的平均透過率高。 -
Compared with the 5. 8s complete sequence of the snail arion rufus, its1 and its2 regions were recognized and combined for analysis. from sequence observation, it showed that the zhejiang sample has more inserted sites and fragments while the sequences of other three are nearly all the same. the average g % + c % of the four individuals was 46. 8 % while the zhejiang sample ' s was 48. 3 % and the other three ' s were all about 46. 2 % ; ts / tv and genetic distance mainly lies between the zhejiang sample and the other three individuals, which were 0. 8 and 0. 07 respectively
用於比較的序列長約350bp ，觀測一級結構，加拿大、墨西哥灣扇貝和美國二代個體的its1和its2序列幾乎完全相同，而浙江個體則具有較多的插入位點與片段； 4個個體平均g + c含量46 . 8 % ，其中浙江個體為48 . 3 % ，其它3個個體均為46 . 2 %左右；轉換顛換比與遺傳距離主要存在於浙江個體與其它3個個體之間，分別為0 . 8和0 . 07左右；以櫛孔扇貝作外群構建的分子系統樹表明：浙江群體已產生了一定的分化。 -
Using the two - site kinetic sorption model and the two - region model, cadmium transport in field soils was simulated, the average of the numerical solution of cd transport at every soils sample was obtained and the spatial distribution of cd concentration was computed
用基於土壤水動力學和溶質運移的物理、化學非平衡模型的數值模型，模擬了污水淹灌條件下鎘在試驗小區土壤中的運移動態，獲得了鎘在土壤中淋溶的空間分佈。 -
Secondly, the identification algorithms of road traffic status are studied including methods of determining floating car sample sizes which are based on “ the relationship between floating car sample sizes and accuracy of traffic information detection ” and “ the relationship between floating car sample sizes and requirement of road network information detection ”. the road traffic identification algorithm grounded on the journey - time is analyzed. besides, road traffic identification algorithm based on average speed is put forward and the validity of these two methods is analyzed in the thesis
主要工作包括:從「浮動車數量與交通流信息檢測準確性關系」 、 「浮動車樣本數量與路網全方位信息檢測需求關系」兩方面對浮動車數量確定方法進行研究，給出了演算法模型;同時，分析了基於行程時間的道路交通判別演算法，提出了基於指數平滑法的平均瞬時速度道路交通判別演算法，並對兩種演算法的有效性進行分析比較。 -
In a limited sample size of 75 at - bats as the yankees ' dh, matsui has 26 hits, an average of. 347
松井偶而以指定打擊身份出賽的75個打數中，他擊出26支安打，打擊率3 . 47 。 -
Through the stand investigation by setting up the sample site, the investigation results showed that the average dbh of 15 - year - old alniqhtllm fortunei planted under nature was 60 % larger than that of 17 - year - old pinus massoniana plantation under the same condition, the average tree height of the above was 38 % larger than that of the latter, the average single - tree volume of the above was 3. 2 times higher than that of the latter, the above showed the absolute dominance in stands
摘要設立標準地進行林分調查，在標準地中選取擬赤楊標準木進行樹干解析，採用生長對比方式分析擬赤楊在馬尾松人工林中的生長情況，調查結果表明，在同一環境條件下， 15年生天然下種的擬赤楊比17年生馬尾松人工林平均胸徑大60 % ，平均樹高高38 % ，平均單株材積大3 . 2倍，在林分中表現出絕對優勢。 -
We found through experimental and mc studies that the dynamical property of 2 - jet event sample in e + e ~ collisions is very different with the average property of the event sample with various number of jets
這個標度值與實驗中在1730gev能區首先發現3噴注的歷史事實一致，因而也就是實驗中「可觀測噴注」的標度。 -
The purpose of this paper is to find out the characteristics of corporate restructuring and reorganizations under the background of strengthened supervision and improved accounting standards in 2001. using financial data on chinese public firms that had performed restructurings in 2001, this paper studies the impact of restructuring activities on firms " performance. it finds that performance of sample companies are better than the market average both before and after restructuring, but financial ratios does not improve obviously, what ' s more, the roe ratios even drop generally, which are very different from the characteristics during the past few years
本文採用以財務數據為基礎進行評價的方法，對2001年上市公司資產重組進行研究發現，從資產重組的方式來看，收購兼并所佔比重最高，業績較好的公司偏向于選擇這種重組方式，而資產置換、股權轉讓仍為績差公司所青睞；從重組前後財務指標的變化來看，重組公司表現優於市場平均水平，但與往年重組公司當年業績即得到明顯提升不同， 2001年重組公司財務指標並未得到顯著提高，凈資產收益率更是全面下降，統計對比不支持上市公司利用資產重組調節公司績效的觀點。 -
But, in fact, americans and canadians had almost identical scores on measures of assertiveness : a slight notch above the average in the study sample
但是事實上美國人和加拿大人在過分自信的測試中幾乎是同樣的得分，而這樣的結果在研究案例中幾乎是比比皆是。 -
Explanation carries out annealing handling for sample, the coercivity of pellet membrane average, it is little to reduce
5910e之間。說明對樣品進行退火處理，顆粒膜的矯頑力平均來說減小了。 -
In this thesis, we adopt the technique of statistical training, create a sample database of every kinds of expression face images, construct a matrix of the difference of each sample and average image, and reduce dimension by pca, then decrease the relativity of principle components by ica, and therefore get the character sub - space of face. when detecting a face, we adopt the method of disturbing principle components of model to match special facial image, which is called whole optimization method in this thesis
論文採用統計訓練的思想，選擇包括各種表情變化的人臉圖像建立樣本庫，取所有樣本與平均圖像的差構造一個矩陣，利用主元分析方法進行降維，然後通過獨立元分析降低主元相關性，建立了人臉的特徵子空間；演算法採取對主元進行擾動優化匹配的方法檢測人臉，本文稱此方法為全局最優的方法。 -
We then prove that the em algorithm becomes a compact map in certain neighborhood of a consistent solution when a measure of the average overlap of gaussians in the mixtures is small enough and the sample size is large enough
我們證明了高斯混合體em演算法在混合密度的重疊度很小時在其樣本真解相一致的解的一個鄰域內是一個壓縮映射。 -
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 -
This paper examines the announcement effects of china ' s listed firms ' divestitures completed during 1998 - 2002 and finds that sample firms have positive cumulative average abnormal returns in the event windows of [ - 1, + 1 ] and [ 0, + 7 ]
摘要對我國上市公司資產剝離的宣告效應進行實證分析后發現，樣本公司剝離公告前後的一個交易日內以及剝離公告后的7個交易日內，分別有正的累積平均超常收益。 -
Then, a step - by - step increase of vertical curvature is applied to the hull girder assuming that the plane cross section remains plane. at each incremental step, the stress of the cross section is evaluated using the average stress - strain curves of the elements as well as the incremental bending moment due to the curvature increment. performing sample calculations on existing girder models tests under pure bending, the rationality of the proposed method was examined
假設船體橫向框架材足夠強，因而板架的整體破壞不會發生；基於梁?柱理論、理想彈塑性假設、平面假設，建立了拉伸和壓縮加筋板單元的平均應力?應變關系曲線，應用船體結構總縱極限強度的簡化逐步破壞分析方法計算船體總縱極限彎矩，並據此開發了計算程序sus 。 -
The sample thickness declining, provided the number of nuclei per unit volume fix, the value of the avrami exponent n falls, but the values of vc and s almost do n ' t change. when the value of thickness reduce to the average diameter of entities, the turning point turn up after the course of crystallization has begun soon
當單位體積內晶核數目不變時，樣品厚度h減小， n減小； v _ c和_ s值基本不變：當h降到小於等於體系內球晶的平均直徑時，在結晶最初期，會出現一個初期轉折點。 -
Fair average sample
平均中等樣品 -
This paper relates a study of using automated gel permeation chromatography ( gpc ) to clean soil sample extracts with an average recovery of spiked blank samples of about 79. 0 %, far better than the common florisil method
將該凈化方法應用於實際土樣的凈化，並和佛羅里硅土凈化方法相比較，經凝膠滲透色譜凈化的20種有機氯農藥空白加標的平均回收率為79 . 0 % ，比佛羅里硅土凈化的空白加標平均回收率高14 . 9 % ，且凝膠滲透色譜的凈化效率較好。 -
Standard practice for calculating sample size to estimate, with a specified tolerable error, the average for characteristic of a lot or process
為估算一批產品或者一次加工過程的製品的質量對樣品尺寸的選擇的標準規程
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