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D相关的网络例句
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It should be controlled and for aseptic processing it should be at least grade D.

要控制无菌生产的背景环境,并且最低为D级。

Key words]picrorhizae; cerebral ischemia; n methyl d aspartate receptor 1; rats, wistar

关键词]胡黄连;脑缺血;n 甲基 d 天门冬氨酸受体1;大鼠,wistar

Based on surveying the development of variable frequency power supply and analyzing its development tendency, and considering the practical features of the assignment, the conversion system is designed as follows: it selects the 3-phase Pulse Width Modulation Engine SA4828 as the PWM control signals generator; it chooses the single-chip-computer PIC16F877 as the microcontroller, which integrated the A/D modulation, which cuts down the complexity of the hardware system and strengthens the dependability of the system.

在论述和分析了变频电源及其控制技术发展的概况和趋势的基础上,结合本课题任务的实际要求,设计了一套中小功率的逆变电源。系统中PWM控制信号采用专用集成芯片SA4828生成,减轻了控制器的工作量也提高了系统的可靠性。控制器选用集成了A/D转换器的单片机,使得系统的硬件复杂性降低,提高了可靠性。

Though comparing Canny operator and center B spline dyadic wavelet, the following conclusion is proven in this dissertation: a Center B spline function has tight support and Canny operator hasn't. b Center B spline function asymptotic convergence to Gaussian function and the derivative of Center B spline function asymptotic convergence to Canny operator. c The derivative of fourth order center spline B function is more suitable as a optimal edge detector than Canny operator. d Center B spline function can balance the smoothing and approximation of original data, and the fourth center B spline function is the only optimal solution of two order smoothing problem. e The error between the valve of time-frequency uncertainty of the fourth center B spline function and the lower bound of time-frequency uncertainty does not exceed 0.143% of the lower bound. f The derivative of center spline B function can construct a stability dyadic wavelet and can give a fast algorithm for multiscale edge detection, but Canny operator can do neither.

作者给出了Canny算子与中心B样条二进小波严格的比较证明,得出如下结论:a中心B样条函数具有紧支集,Canny算子不具有紧支集。b中心B样条函数的极限收敛于高斯函数,中心B样条函数的导数收敛于Canny算子。c四阶中心B样条函数的导数比Canny算子更接近最佳边缘检测滤波器。d中心B样条函数比高斯函数更能兼顾对原函数平滑和逼近的折中要求,并且四阶中心B样条函数是二阶逼近问题的唯一最优解。e四阶中心B样条函数的时频测不准关系值与时频测不准关系下界的逼近误差不超过0.143%。f中心B样条函数的导数可以构成稳定的二进小波,存在快速的多尺度算法;而Canny算子不构成稳定的二进小波,无法给出快速的多尺度算法。

Furthermore, the metallic glass samples are prepared by vacuum injection method and the rationality of above-mentioned relationships and RBF models is directly verified. It is shown that there are extremum phenomena between the Rc andΔd ,Δe and v respectively. However, the positions of the extremum are different from different alloy systems and the extremum phenomena may be related to the optimum composition region and the optimum additive quantity. More elements in the alloy are in favor of the improvement of the GFA. And as for the high GFA alloy, the atomic percentage, atomic radius difference and atomic electronegativity difference are harmoniously matched.

d、Δe和v与临界冷却速度Rc的关系中都出现极值现象,对于不同的合金体系,极值出现的位置不同;金属玻璃的最优成分范围以及各种添加元素的最佳添加量行为,可能与此极值现象相关;合金中包含的组元数目多有利于提高其玻璃形成能力,玻璃形成能力强的合金,其各个组元的原子百分含量、组元原子半径差及其电负性差之间的搭配是很和谐的;融合建模的合金系之间包含的主要组元数量和种类越相近,所建立的模型的可靠程度越高,其预测结果与实测结果越吻合。

Auguste D would be the first patient to be identified with Alzheimer's disease.

D女士便是第一位被指出有阿兹海默症的病人。

1 PAUL AUSTER'S new novel is a curious jeu d'esprit—though the jeu isn't much fun and the esprit is pretty gloomy.

jeu d'esprit 确实是一部电影的名字,但是还没有找到中文的翻译,还请高手指教

Objective To investigate the relationship between vitamin D level in plasma and concomitant symptoms in children aver 4 years of ago.

目的 研究4岁及4岁以上儿童血清维生素D水平与其伴发临床症状的关系。

The Magian laws of purification, moreover, more particularly those practised to remove pollution incurred through contact with dead or unclean matter, are given in the Avestan Venddād quite as elaborately as in the Levitical code, with which the Zoroastrian book has been compared.

法律的Magian纯化,此外,更特别是那些实行以消除污染费用通过接触死亡或不乾净的问题,给出了相当的阿维斯塔文Venddād的精心在Levitical代码,这本书的拜火教了比较。

For a 2-D case, there are two possible geometric modes: Axisymmetric and Plane Strain simulations.

为2-D情况下,有两种可能的方式几何:axisymmetric和品种模拟机。

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相关中文对照歌词
A.D.H.D.
O.D.'d On Life Itself
D'amour Ou D'amitie
A.D.D.
D.D.
L.O.U.D. L.O.U.D.
G.D.O.D.
A.D.H.D
A.D.I.D.A.S.
A.D.I.D.A.S
推荐网络例句

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。

Do not 'inflate' your achievements and/or qualifications or skills .

不要 '夸大' 你的业绩或成果,条件或者技能。