known sample 中文意思是什麼
known sample
解釋
已知試樣-
Beer - lambert law, more commonly known as beer ' s law, states that the optical absorbance of a chromophore in a transparent solvent varies linearly with both the sample cell pathlength and the chromophore concentration
比爾-朗伯定律，更多的被稱為比爾定律，是指在透明溶劑中發色團的光束吸收度隨著樣品電池路徑以及發色團濃度的變化而呈線性變化。 -
Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features
前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定，而格局分佈有可能受樣方大小的影響，且分析過程中沒有涉及聚塊間密度差的問題，因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法，測定不同生境的格氏栲種群空間格局，分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義，紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明，格氏栲種群格局強度從高到低排列次序為：木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷；格局紋理從粗到細的順序是：木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此，格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切 -
A known amount of lycopodium spores was added to each sample to calculate the concentration of pollen ( grains / gram ). pollen was examined at magnifications of 100 + and 400 + and identified using modern pollen collections and published atlases
P2 - 1 ：該亞帶木本花粉的濃度達到了9 . 79粒克，而草本植物花粉的濃度相對于p1帶有所下降，氣候條件較好，植被為草甸草原。 -
Elemental analysis based on the emission from plasma generated by focusing a powerful laser beam on a solid sample surface is known as laser - induced breakdown spectroscopy ( libs ). when the power density of laser on the sample surface is high enough, the sample is vaporized, and the neutral and ionic species are formed in excited states
利用聚焦的強激光束入射固體靶表面產生激光等離子體，對等離子體中原子和離子發射譜進行雜質元素分析，這一過程叫做激光誘導擊穿譜（ laser - inducedbreakdownspectroscopy ） ，簡稱（ libs ） 。 -
That is firstly establishing the body characteristic image and character data - base of every breed at the newly - hatched silkworm stage by anatomical microscope and photography equipment, and then comparing the body characteristic of the silkworm breed to be identified with the corresponding characteristics of every breed having known in the data - base, and making a statistic deduction on the inspectional results in the light of probability distribution theory and sample deduction method
不同蠶品種具有不同的蠶體顏色、斑紋、斑紋顏色和形狀、體型等形體特徵，這種形體特徵與4 、 5齡大蠶的形體特徵不同，據此發明了一種根據蟻蠶期形體特徵檢驗蠶種雜交率的方法。 -
Once the key is obtained, even if the algorithm isn t known, each of the potential algorithms can be tried in turn on a sample of ciphertext to determine the combination used to encrypt the plaintext
攻擊者一旦獲得密鑰，即使不知道加密演算法是什麼，也可以在一個樣本密文上依次嘗試每種可能使用的演算法，從而判斷用於加密明文的組合是什麼。 -
Tea. preparation of ground sample of known dry matter content
茶葉.已知干物質成份的茶葉末樣品的制備 -
In chapter 5 the distributed cfar detection is studied when lds are correlated. due to the correlation of local decisions is not known, empirical estimation is adopt to resolve this problem, the relationship of the training sample size and the estimated confidence is analyzed
對局部採用硬判決的情況，深入研究了傳統的分析方法，利用經驗估計解決了局部觀測相關系數未知時存在的困難，分析了系統判決精度與估計樣本數量的關系。 -
Curves are generated by dropping a series of known weights onto a cushion sample from a specified height and measuring the amount of shock experienced by the weights as they impact the foam
它的產生就是將一系列已知重量的重塊從一個特定的高度跌落到襯墊式樣上，此時測得這些重塊撞擊到泡沫材料上所承受的加速度。 -
The examples in abroad and home indicate that the viscous remanent magnetization is a convenient tool for orientation determination of drilled cores. it can be used on samples for which the geological age is not known. the only information required is well position, the direction and magnitude of well deviation and the " right way up " for the core sample
結合國內外的研究實例和自己的研究實例，對利用粘滯剩磁確定巖心方向進行了較深入的研究，進一步證明了粘滯剩磁巖心定向是一種不用考慮復雜的地殼運動和地質年代，只需要井位的井斜數據和取心方向標記的簡單、方便值得推崇的方法。 -
A kind of sample in which every member of the population does not have a known probability of selection into the sample
一種抽樣方法.即人口中的每個個體被選為樣本的概率不同.見方便抽樣，有目的抽樣，和定額抽樣 -
Methods of test for tea - preparation of ground sample of known dry matter content
茶葉試驗方法.第1部分:已知干物質含量研碎樣品制備 -
The computer stochastic simulation test was used to study repeat number for controlling the probability of type ii errors and establish a formula calculating sample size in the ease of known historical data
利用計算機摸擬試驗，從控制犯第二類錯誤的概率來研究兩總體均值比較試驗時的重復次數問題，求得在已知歷史資料情況下樣本容量的計算公式。 -
The elevation is 3200 meters, the line is 30 kilometers from the highway, traffic is convenient, kazakhstan slave mention mine exploit nephrite ancient times, known as meaning that is nearly, because slave, county of qira, adjacent place one hundred produce jade, call mountain ore kazakhstan jade ore that slave mention nearly. the slave of kazakhstan has nearly carried and produced the kunlun jade for many years ago, but has collected to and verified the sample that really there is nephrite recently, so the nephrite of the output is undoubtedly
海拔3200米，距公路線30公里，交通方便，哈奴約提礦山古代曾開采過和田玉，被稱為塔克是山的意思，因為策勒縣奴爾附近百里之內不產玉，就把哈奴約提的玉礦稱為山礦。前多年哈奴約提產昆侖玉，但近來收集到並證實了確有和田玉的標本，因此產出和田玉也是無疑的。 -
When the given point set is a local separate sample of a closed surface set or an overall separate sample with known radius of sampling hole, the algorithm will reconstruct a correct result ; when the separate condition is not satisfied at some points, the algorithm will give result with corresponding holes
當所給點集是閉曲面集的局部分離樣本或已知采樣空洞半徑的全局分離樣本時，本演算法將給出正確的重建結果；當所給點集在某些樣點處不滿足分離條件時，演算法將給出相應的空洞以供參考。 -
Matrix spike - a sample prepared by adding a known mass of a target analyte to a specified amount of matrix sample for which an independent estimate of the target analyte concentration is available
通過加已知數量的目標分析物到一個已定數量的基質樣品而制備得到一個樣品，這樣就可以獨立的測定此目標分析物的濃度。 -
These variables, which are key indictors of process performance, are normally determined by off - line sample analyses in the laboratory or using an on - line analyzer. product quality values calculated on - line by using indirect but readily variable measurements ( known as soft measurements ) have been considered as an efficient method to solve this problem
這是因為： （ 1 ）許多重要變量難于實時測量； （ 2 ）對每個生產過程變量設置測量儀表是非常不經濟的； （ 3 ）在線質量分析儀投資昂貴、難于維護、實時性差。 -
This paper studies the typical two - unit series maintained system, the distributing of the units life have been known. by random sample to the life of units and simulate with computer, uses monte - carlo method, counts the failure time of every unit, and failure rate - the reliability character of two - unit series system is derived, together with its curve
摘要研究了典型的兩元件串聯的可修系統，在已知元件的壽命分佈的條件下，應用蒙特卡羅方法，對元件的壽命進行隨機抽樣並進行計算機模擬，通過統計每個元件故障的次數，得出了兩元件串聯可維修系統的可靠性特徵量故障率，並繪出了曲線。 -
( 2 ) base on the complete sample of 178 spiral galaxies in the virgo cluster given by fouque et al. ( 1990 ), the sv orientation distribution of the spiral galaxies with known galactic inclinations is studied
（ 2 ）利用fouqueetal . （ 1990 ）所得的帶有傾角數據的完備的virgo團旋渦星系樣本，對virgo團旋渦星系旋轉矢量分佈進行了統計分析。 -
Finally, a new kind of methods on how to classify a sample into one of the several known populations in terms of posterior probability ratio established by the sample ' s predictive density functions when the unknown parameters " prior distributions are diffuse prior and minnesota prior or normal - inverted wishart distribution
最後，利用參數的充分統計量，根據后驗概率比構造了一類新的基於擴散先驗分佈和正態?逆wishart先驗分佈的多總體貝葉斯分類識別方法。
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