S.N.

S.N.的基本解释

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[医]secundum naturam按性质, 依据性状

与S.N.相关的网络例句 [注：此内容来源于网络，仅供参考]

We posed the concept of sufficient intersection about s(1≤s≤n) algebraic hypersurfaces in n-dimensional space and proved the dimension of polynomial space Pm(which denotes the space of all multivariate polynomials of total degree≤m) on the algebraic manifold S=s(f1,…, fs) where f1(X=0,…, f s=0denote s algebraic hypersurfaces of sufficient intersection, then gave a convenient expression for dimension calculation by using the backw ard difference operator.

给出了n维空间中s(1≤s≤n)个代数超曲面充分相交的概念，证明了n元m次多项式空间Pm在充分相交的代数流形S=s(f1，…， fs)（f1=0，…， fs=0表示s个代数超曲面）上的维数，并利用倒差分算子给出一个方便计算的表达式；构造了沿代数流形上插值适定结点组的叠加插值法；证明了在充分相交的代数流形上任意次插值适定结点组的存在性；给出代数流形上插值适定结点组的性质和判定条件。

Understand the basic conceptions on homolysis and heterolysis of covalent bonds, and on the nucleophilic substitution and elimination; Grasp the mechanism and stereochemistry of S N 1 and S N 2 reactions; be capable of judging the stability of carbocations; know the factors that can influence the rates of S N 1 and S N 2 reactions; grasp the elimination reactions of haloalkanes, the mechanism and stereochemistry of E1 and E2 reactions.

了解共价键的均裂和异裂及亲核取代反应的基本概念；掌握 S N 1 和 S N 2 反应机理和立体化学；能够判断正碳离子的稳定性；了解影响 S N 1 和 S N 2 反应速率的因素；掌握卤代烷消除反应， E1 和 E2 反应机理和立体化学。

N\nTotal disk capacity:%s\nUsed disk space:%s\nAvailable disk space:%s\nRequired disk space:%s\nRemaining disk space after import:%s\n

n\n磁盘总容量：%s\n已使用容量：%s\n可用容量：%s\n需要容量：%s\n导入后剩余容量：%s\n

与S.N.相关的网络解释 [注：此内容来源于网络，仅供参考]

fatigue stress-number of cycle curve：疲勞S-N曲線

fatigue strength 疲勞強度 | fatigue stress-number of cycle curve 疲勞S-N���線 | fatigue test 疲勞試驗

S.N. shipping note：装船通知书

S.L.&C. shipper's load and count 托运人装卸和点件(集装箱) | S.N. shipping note 装船通知书 | 2.seller's option卖方选择

S.N. saponification number：皂化值

SMR Standard Malasian rubber标准马来西亚橡胶 | S.N. saponification number皂化值 | serial number顺序号;连续号