查询词典 spectral

The experiment indicates that transition time and reduce potential of silver bromide are decreased by addition of the spectral sensitizing dye.

而计时电位啊以简化体系，是用模拟手段研究在真实环境下，照相染料与卤化银相互作用的很好方法。

A chronopotentiometry technique for studying the interaction of spectral sensitive dye with silver bromide is described.

计时电位法〔'，是以恒定电流通过电极系统，测定工作电极电位随时间一的变化来进'行电化学分析或研究的方法。

Ects, the covariance matrix of observation vector has special structure,and using the linear transformation for original model by idempotent matricesin the spectral decomposition of the covariance matrix, the problem of estima-tion of the covariance matrix becomes simultaneous estimation of all the distincteigenvalues of it.

在带有随机回归系数的一般线性模型中，首次提出了随机回归系数和参数的Minimax估计问题，分别在齐次线性估计类和一切估计类中研究了一个线性估计的Minimax性。

For instance, the spectral image compression algorithm [5] is based on the singular value decomposition.

例如，光谱图像压缩算法[ 5 ]是基于奇异值分解。

F. Their structures were identified as betulone (1), 3,4,5-trimethoxyphenol-β-D-glucopyranoside (2),α-amyrin (3),β-amyrin (4),β-sitosterol (5), and stigmasterol (6) by spectroscopic evidence (IR, NMR, MS, etc.) and comparision of their spectral data with those of the literatures.

F。 的乙醇提取物中分离得到6个化合物，经波谱分析及与文献数据对照确定其结构分别为：betulone (1)、3，4，5-三甲氧基苯酚-β-D-吡喃葡萄糖苷(2)、α-香树脂醇(3)、β-香树脂醇(4)、β-谷甾醇(5)和豆甾醇(6)。

It had been snowing since dawn and I was sitting inside my stone-floored home, feeling blue and lonely, when he came in from the outside - a spectral-looking figure in a long cotton padded gown with a skullcap on his head.

这天一清早就下雪。我坐在我那石板地的屋子里，感到有些郁闷和孤独。这时，他从外面走进来——一位幽灵似的人，身穿棉袍，头戴小帽。

The major implementations of the developed model include: Pseudo-spectral and finite-difference schemes are employed to approximate the spatial-differential operators in the horizontal and vertical directions, respectively. A second-order Runge-Kutta method is adopted to integrate in time for the velocity field and the free-surface elevation. The solenoidal condition of the velocity field is satisfied by solving the transformed pressure Poisson equation. A modified secant method is used to accelerate the iterative solution of the non-separable Poisson equation.

模式的主要数值方法包括：分别以拟频谱法以及二阶有限差分法近似控制方程与边界条件中的水平与垂直导数；以二阶Runge-Kutta法进行非稳态的自由液面位移与流场速度的时间积分；利用改良式割线叠代法求解计算区间中不可分离的压力Poisson方程式，以满足不可压缩流条件。

Due to its capability of quick measurement and high spatial and spectral resolutions,this technique is expected to have wide applications in biomedicine field.

与逐点扫描方法相比，该技术的扫描效率随激发点数线性提高，具有快速测量、高空间和高光谱分辨的特点，可用于生物医学领域。

Furthermore, it has the capability to perform spatially resolved spectroscopy with high spectral resolution.

此外，它有能力进行空间分辨光谱与高光谱分辨率。

We focus on the construction of risk spectra and the application of spectral risk measures to the financial markets.

研究了风险谱函数的构造及谱风险度量在金融市场中的应用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。