查询词典 D.A.

In 1726, he also visited Parma and Milan, where Johann Joachim Quantz heard him and commented: Farinelli had a penetrating, full, rich, bright and well-modulated soprano voice, with a range at that time from the A below middle C to the D two octaves above middle C....

在1726年他也访问了Parma和Milan，在Milan碰到Joachim Quanty，他在听过Farinelli歌声后评论道「Farinelli有穿透、饱满、丰富、嘹亮与转音良好的高音，当时其音域可以从中央C下面的A音开始，一直往上跨越了两个八度音阶到D音。

One is theexplicit formula for strict-connected acyclic hypergraphs:〓where a=r-d,m=/a;the other is the recurrence formula for linearacyclic hypergraphs:〓where the numbers of r-1 and r in the multinomial coefficient are j and krespectively,〓 and 〓.

一个是关于严格-维连通无圈超图的显式公式：〓其中a=r-d，m=/a；另一个是线形无圈超图的递推公式：1=〓其中r-1与r在多重组合数中的重数分别是j与k，〓且f(0，r)=1。

Patterns A and D are called pennants - a tight weave of prices that follows a sharp move up or down its flagpole.

模式A和D叫旗形--紧紧排列在一起的价格上涨或下跌形成旗杆。

This paper analysized the relationship between sampling frequency fs and the taps N of low pass filter in A/D transform and got a formula expression, which can give reference to the parameter design of quadrature sampling.; aiming at the wave distortion in traditional arithmetic of quadrature sampling with pulse compression, an improved algorithm has been studied and validated in Matlab and get perfecter result. In order to enlarge the detect distance of Radar, a method of part pulse compression is put forward, the realistic sense and the implement scheme is analysized.

本文分析了在正交插值前端A/D变换中采样率的选择与正交插值低通滤波器的阶数的关系，得到公式化的表达式，可为正交采样参数设计提供参考；针对传统的正交插值及脉冲压缩算法中的波形畸变提出了改进方案，并通过仿真实验得到较好的效果；为扩大雷达的探测距离，提出部分脉压的方案，详细分析了其理论意义及实现方法。

Our founder, D.J. De Pree, committed Herman Miller to "modern" furniture in 1936 partly because he saw a moral dimension to Gilbert Rohde's clean designs, honest materials, and lack of ornamentation. In 1984, a major impetus behind Bill Stumpf and Don Chadwick's Equa chair was a desire to give a reasonably priced, comfortable, good-looking chair to everybody in offices--not just the higher-ups.

1936年，创始人D.J。 De Pree决定带领Herman Miller走上"现代"家具的发展之路，促成这个决策有一部分是因为他接受了一种新的道德维度，即看到Gilbert Rohde干净简约的设计，真实可靠的原材料，没有任何装饰的自然风格。1984年，在内心强烈愿望的驱动下，Bill Stumpf 和 Don Chadwick合力设计开发了Equa座椅，它是一款价格合理、舒适而美观的座椅，适合办公室里的每个人，而不仅限于管理者。

Firstly, this paper definited pseudometric d for n -foldproduct of σ-algebra A of subsets of a given set X , and definited indicator function ; secondly, gave the concept of differentiable of set function at S° and concept of partial derivative at S° with respect to the ith argument Si through indicator function, and defound the weak efficient solution of and optimality necessary condition; Finally, obtained three weak duality results and strong duality results under generalized convexity conditions.

首先，对已知集X的子集的σ-代数A的n-折积A^n，定义了伪度量d，给出了相应的特征函数〈h，Is〉；其次，通过特征函数给出了集函数在S 可微的定义及集函数在S 关于第i个变量Si的偏导数定义；给出了多目标规划问题的弱有效解概念及的最优性必要条件；最后，分别在目标函数和约束函数的3种较弱凸性条件下，研究n-集函数多目标规划问题的对偶问题，获得了3个弱对偶结果和强对偶结果。

Based on the technique of radiate temperature measurement, the author designs a circuit of prismatic decomposition colorimetric radiate temperature measuring. A high resolution A/D converter and measurement range switch technology are adopted to resolve the problem that it has lower radiation power and lower signal sensitivity in the low-temperature stage, while higher signal amplitude and higher need of dynamic range in the high-temperature stage. The technique of the Black Body Furnace demarcates, digital calibration and the quartic curve fitting are applied to correct the sensor and improve its measurement precision.

3研究了辐射温度测量技术，设计了棱镜分光比色辐射温度测量电路，使用高分辨率A／D转换器和量程切换技术解决低温段辐射能量小、信号灵敏度低，而高温段信号幅值大，动态范围要求高的矛盾，应用黑体炉标定技术和数字校准方法以及4次拟合校正技术提高温度测量精度。

A new type of low2powerMCU realizing embedded USB high2speed, high2p recision data acquisition system design scheme was introduced. The design takes the low powermicrocontroller2based control STC12C5410AD with A / D converters in it as the control chip, connects a high degree of integration UART to USB chip, realizes the embedded data acquisition system USB interface design.

介绍了一种利用新型低功耗单片机实现USB嵌入式的高速、高精度的数据采集系统的设计方案；该设计以内藏A /D转换器的低功耗单片机STC12C5410AD为主控制芯片，连接高集成度的UART转USB芯片CP2101，实现嵌入式数据采集系统的USB接口设计。

As a step in the regroupment of their battered regiments, Litzenberg and Murray organized a provisional battalion made up rather strangely of the combined Companies D and E, 7th Marines; and sections of 81mm mortars from the weapons companies of the 2d and 3d Battalions, 7th Marines; and Companies A and G, 5th Marines.

做为对已经遍体鳞伤的两个陆战团进行整编的一个步骤，里特森伯格和默雷组建了一个暂编营，非常奇怪地将陆战7团的D连和E连，以及该团2营、3营重武器连的迫击炮班，和陆战5团的A连与G连一起编入了这个临时组建的步兵营。

The data were divided into four groups,A group included 57 cycles:a proximal tubal ligation with distal tubal salingostomy had been introduced to the patients before the IVF.B group included 55 cycles,a salpingectomy had been introduced to the patients before the IVF.C group included 52 cycles:no surgical procedure was adopted before IVF-ET.The control group was defined as D group and included 78 cycles of IVF-ET.

回顾性分析2007年3月至2009年3月在沈阳204医院生殖中心因输卵管性不孕接受IVF-ET 治疗共242周期的临床资料，根据IVF-ET前输卵管情况分4组，A组：57个周期，采用输卵管近端结扎伞端造口术；B组：55个周期，已行输卵管切除术；C组：52个周期，积水未行手术组；D组：78个周期，单纯输卵管阻塞，作为对照组。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。