查询词典 spectral density

Based on the summary of latest research results, the structure features, the synthesis methods and the mechanism as high density recordable optical recording media of metal porphyrin complexes are described.

本文在总结近年来最新研究成果的基础上，阐述了金属卟啉配合物的结构特点、合成方法和作为高密度可录光盘存储介质的作用机理，讨论了影响卟啉配合物性质和光存储性能的主要因素，并对未来的发展趋势作了展望。

In this year it consists of (1) magnetic recording head materials;(2)giant magnet-resistance materials;(3)perpendicular magnetic recording materials;(4)high density magnetic storage maferials;(5)study of magnetic thin film by magnet-optical method.

本年的综述内容包含：(1)磁记录头材料；(2 )巨磁电阻材料；(3)垂直磁记录材料；(4 )高密度磁存储材料；(5 )磁膜的磁光法研

The static characteristic matrix and dynamic admittance matrix of the rectangular split-morph have been determined based on the method of internal energy density and theory of vibration, respectively.

静态特性矩阵就象一个"黑箱"，力矩M、力F和电压V的任意线性组合激励，都可以通过该"黑箱"使致动器给出特定的致动行为，而不必考虑其内在的运行过程。

A quantitative description of variation of the demagnetization curve rectangularity of Nd-Fe-B magnets with sintering process and a study of the effect of relative density, grain size and its distribution on the demagnetization curve rectangularity of Nd-Fe-B magnets are presented in this paper.

定量描述了Nd-Fe-B磁体J-H 退磁曲线方形度与烧结过程的关系，分析了相对密度、晶粒尺寸及其分布对磁体J-H 退磁曲线方形度的影响规律。

Rectangularity values (defined as IPD/IRD relation) were low (among 0.1 and 0.4); therefore, model fitting was made considering plant density corresponding to eac...

由此模型我们可得出花生最佳种植密度介于25和30株/m2之间。再加大种植密度并不能取得更高的荚果产量和经济效益。

Peanut ; plan density ; rectangularity ; pod yield ; economical profit

花生；种植密度；株行距比值；荚果产量；经济效益

Rectangularity values (defined as IPD/IRD relation) were low (among 0.1 and 0.4); therefore, model fitting was made considering plant density corresponding to each rectangularity.

模型的适用范围取决于种植密度和相应的株行距比值。

Pearson's chi-squared test ; Vertical density representation ; Center-similar distribution ; Recurrent event data ; Estimating equation

Pearson X2检验；垂直密度表示；中心相似分布；复发事件数据；估计方程

Plant oestrogens from soy bean and red clover extract help to restore skin's density, thereby smoothing and reducing the appearance of wrinkles.

植物雌激素的黄豆和红三叶草提取物有助于恢复皮肤的密度，从而平滑，并减少皱纹的出现。

Phytoestrogens of soy bean and red clover extract help to restore skin's density, thereby smoothing and reducing the appearance of wrinkles.

植物雌激素的大豆和红三叶草提取物有助于恢复皮肤的密度，从而平滑，并减少皱纹的出现。

Nate Bunce is a duck and goose farmer.

内特·班池养鸭和鹅

Now,however,the waters of this great lake,which is also the world's deepest（over l 740 metres）,have been dirtied by waste from a chemical factory.

然而，如今这个大湖——也是世界上最深的湖（1 740多米）——湖水已经被一家化工厂的废物污染了。