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Pitched lower than the viola but higher than the double bass.

一种提琴类四弦乐器，音调比中提琴低但比低音提琴高

In recent years, more and more scientists modify the double bond or benzene ring of resveratrol to get higher active, lower toxicity derivates.

近年来越来越多的科学家对其进行结构改造以得到高活性化合物，例如对双键、苯环的修饰。

Based on Reddy higher-order shear deformation plate theory and general von Kármán-type equations, the analytical solutions for free vibration and dynamic response of simply supported functionally graded plates with piezoelectric layers in thermal environments are described with double Fourier series, where temperature-dependent material properties are taken into account.

基于Reddy高阶剪切变形理论和广义Kármán 型方程，用双重Fourier级数展开法求得了热环境下带压电层的功能梯度复合材料混合层合板的自由振动及动力响应的解析解，分析中考虑了材料热物参数对温度变化的依赖性，讨论了环境温度和控制电压对固有频率及动力响应的影响。

Compared with the compress algorithm based on trigonometry invariant equation, the new algorithm can double the compress ratio with the same performance, which means reduction the power and higher operating speed of the digital modulator.

在得到相同性能的前提下，与现有的基于三角恒等式的压缩方法相比，基于Talor级数的压缩算法提高了1倍的压缩比，从而使更快速更低功耗的数字调制器的实现成为可能。

The purity of SAM product was higher than 95％, and the overall recovery of SAM sulfate and SAM double salt of sulfate and p-tosylate were 60％ and 50％, respectively.

通过筛选，获得了对SAM有较好选择性离子交换能力、较易洗脱和再生的争光D113弱酸型阳离子树脂，研究了温度、pH等对SAM离子交换的影响，根据SAM在弱酸阳离子树脂D113上的等温交换平衡行为表现出较强的可逆性，考虑到交换基的弱电解质性质以及结合Donan膜平衡理论，建立了考虑pH影响的可逆离子交换平衡模型，该模型可以较好地描述SAM平衡浓度、pH对离子交换平衡的影响；通过对动态离子交换过程的研究，得到了SAM在D113树脂内的有效扩散系数的数量级为1.0E-9cm〓/s～1.0E-8cm〓/s。

Then SAM precipitation was carried out by picric acid and SAM precipitated is higher than 90％. After butanone extraction, acetone precipitation and SAM sulfate or SAM double salt of sulfate and p-tosylate formation, the stable SAM salt was obtained.

结果表明，苦味酸是一种选择性较好的沉淀剂，沉淀步骤得率在90％以上，制备SAM的硫酸盐的总得率在60％以上，而硫酸对甲苯磺酸双盐的得率在50％以上，产物的纯度达到了95％以上，已经达到了国外同类产品的质量指标。

It is safe to say that almost anyone can double his speed of reading while maintaining equal or even higher comprehension.

可以说那几乎任何人可能加倍他的读书的速度当维护相等甚至更高的领悟。

A sustained period of higher growth would have a double-barrelled effect of killing both the debt and deflation problems.

保持高增长的期间也可以达到消除负债和通货紧缩问题的双重效果。

This is the "double-edged sword" of higher vocational education in the propellant, but also led to many problems.

这把"双刃剑"在助推高等教育的同时，也引发了诸多问题。

You can expect to pay higher rates on the down payment or 20 percent portion of the loan.

你可以预期支付较高的利率或首付20%的贷款比例。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。