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- A mark used as a superscript to indicate the first derivative of a variable. 撇号置于右上角的符号，用以标明变量的第一个导数
- It's known that extreme value point and inflexion point can be discussed through the first derivation, and the second derivation. 摘要我们已经知道利用一阶导数、二阶导数讨论函数极值点、拐点的方法。
- Methods: The first derivation spectrophotometry method was used to determine the content and content uniformity of methylphenidate hydrochloride tablets with the solvent of water. 方法:以水为溶媒用一阶导数光谱法测定盐酸哌甲酯片的含量及含量均匀度。
- The first Derived Column transformation is named Calculate LineItemTotalCost. 第一个派生列转换名为Calculate LineItemTotalCost。
- First derivation spectrophotometry 一阶导数光谱法
- In other coordinates it will involve second and possibly first derivatives with respect to time. 在别的坐标系中，它除了包含对时间的二阶微商外，还可能会包含对时间的一阶微商。
- Peakon solutions have discontinuous first derivative on the peaks and can be described by Dirac function. Peakon解在波峰处一阶导数不连续;但可用D irac广义函数表示.
- To determinate Vitamin E (VE) in liposomes,we compared first derivative UV spectrophotometry with fluorophotometry. 为测定包裹维生素E（VE）的脂质体中VE的含量，比较了荧光法、一阶导数紫外光谱法这两种方法。
- The limit of this quotient as the time of travel becomes vanishingly small; the first derivative of distance with respect to time. 瞬时速度当运动时间小到可以忽略时,此商数的极值;距离相对于时间的一阶导函数。
- D by using the first derivative spectrum and REP, and the properest models were index(R2=0.9487)and parabola (R2=0.9392) respectively. D 是可行的;最适模型分别为指数(R2=0.;9487)和抛物线(R2=0
- A first derivative spectrophotometric method is presented for the determination of fleroxacin(FLX) in tablets,capsules and powder for rejection. 用一阶导数分光光度法测定了氟罗沙星片剂、胶囊和粉针剂中氟罗沙星的含量。
- The first derivative spectrum is more correlatively with the biophysical parameter including chlorophyll density and LAI. 综合分析，孕穗期是利用高光谱遥感进行作物长势和养分诊断研究的最佳时期。
- METHODS Vitamin A extracted from ChengzhiYuyou by using cyclohexane was determined by using the first derivative spectrophotometry. 用环已烷萃取橙汁鱼油中的维生素A后,用一阶导数分光光度法测定其含量。
- It also testifies the intermediate variate in the system is servo valve loading pressure; compensator is a first derivative element. 可以证明本系统的这种观测量是伺服阀的负载压力,而所谓补偿器是一个一阶微分环节,因而容易实现。
- Leaving her first job was a watershed in her life. 辞去她的第一份工作是她生活中的一个转折点。
- Cook the meat quickly at first to seal in the juices. 一开始要大火烧肉，以便保存肉汁。
- In the word "mother" the stress is on the first syllable. 在"mother"这一字里，重音在第一个音节上。,在＂mother＂这一字里，重音在第一个音节上。
- His illness was more serious than the doctor first thought. 他的病较医生原来以为的更严重。
- Bankers and diamond experts are to launch two initiatives in the coming days to create the world's first derivatives contracts linked to diamond prices. 银行家和钻石专家将在未来数日推出两项举措,以创建全球首批与钻石价格挂钩的衍生品合约。
- Passengers with cars must embark first. 带汽车的乘客必须先上船。
