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normal curve (=Gaussian curve) 【物理學】高斯曲線。

normal deviate

It is not hard to conclude that the theory can also be used to solve the problem of reparametrization of curves and surfaces . the fifth part is the expression of normal curves and surfaces in the form of bsc and bbc . the last part involves the applications of the theory of bsc and bbc curves and surfaces in the field of reparametrization of curves and surfaces and entitative modeling 主要研究bbc函數的構造、表示和性質, bbc曲線曲面的表示方法,曲線曲面的參數方程以及它們的性質和特征, bbc曲線曲面b zier曲線曲面的關系, bbc曲線曲面的相關算法;第四部分是tbsc和tbbc曲線曲面理論,涉及tbsc和tbbc函數的概念, tbsc和tbbc曲線曲面的方程及其與b樣條曲線曲面以及b zier曲線曲面的關系;第五部分是常用曲線曲面的bsc和bbc表示;第六部分是bsc和bbc曲線曲面理論在曲線曲面重新參數化中的應用和實體造型中的應用。

Some important problems will be mainly discussed in this paper , including : the formation and representation of bsc , bbc , tbsc , tbbc curves and surfaces , some significant properties and corresponding algorithm , the expression of normal curves and surfaces in the form of bsc , bbc , tbsc , tbbc , the methods of the reparametrization of curves and surfaces based on the theory of bsc , bbc , tbsc , tbbc curves and surfaces , the application of the theory of bsc , bbc , tbsc , tbbc curves and surfaces in the reparametrization of curves and surfaces and practical modeling 3 )函數的概念,并建立了bsc 、 bbc和tbsc 、 tbbc曲線曲面的系統理論。主要研究bsc 、 bbc和tbsc 、 tbbc曲線曲面的構造、表示、性質,特征、算法;常用曲線曲面的bsc 、 bbc表示;基于bsc 、 bbc理論的曲線曲面的重新參數化方法; bsc 、 bbc理論在曲線曲面的重新參數化和實體造型中的應用。論文分為六個主要部分。

In this study , genetic diversity of various strains of spirulina platensis is analyzed with rapd molecular marker and antibiotics marker , the results are compared with their morphologic characters , aimed at constructing a more reasonable classification criterion and knowing more about the genetic background of spirulina . additionally , it is found that under the cultivated condition the linear filament can retransite to the normal curved one which is similar to original spiral filament 本論文利用rapd分子標記及抗生素抗性標記分析了不同鈍頂螺旋藻品系的遺傳多態性,并與其形態學特征進行了比較,以期建立更合理的螺旋藻分類方法及加深對螺旋藻遺傳背景的了解;同時,發現在養殖環境下變直藻絲體可以回變為正常螺旋形態的現象。

Standard deviation in statistics , a measure of the dispersion of a frequency distribution : it is the average magnitude of deviations from the center of normal curve , calculated by squaring all the deviations , calculating their mean , then finding the square root of the mean 標準偏差:統計中,一種衡量數據組分布的分散或變化情況的數據,是偏離正態分布中間位置數據大小的平均值。

Aim at maintaining the normal curves of the spine when performing activities of daily living so as to prevent neck pain 預防及護理頸痛經常保持正確姿勢,可減少頸痛的發生。

Normal curves on the surface of a 四面體表面上的正則曲線

Think times are used , but varied on a normal curve 使思考時間的變化情況符合正態分布曲線。

The mean of a normally distributed population lies at the center of its normal curve . 正態分布總體的平均數在正態曲線的中心。