查询词典 symmetric

When towed fish is towed in the direction perpendicular with the lineation of hinge line of sand waves, the wave length and dipping angles, can be determined from the sonar image at nadir. Under the circumstance, whether the shape of the sand wave is symmetric or not can be shown and the main direction of sediment transportation can be pointed out.

依据相对大尺度的砂波，在拖鱼指向与砂波脊线成大角度斜交时，该波形可在拖鱼正下方影像显示，并且可以辨识该波长与坡倾角，以判定此砂波为对称波形，或非对称波形，来指示沉积物的净搬运方向。

By using the two symmetric absorption peaks of iodine molecules within the frequency range of Brillouin scattering in water, accurate real-time measurement of Brillouin shift in water could be achieved.

利用碘分子在水中的布里渊散射光谱范围内的两个对称的吸收峰，可以对光在水中的布里渊散射频移实现高精度的实时测量。

Secondary stress field resulting from valley cutting is basically symmetric about the valley central line hut not of axial symmetry . From top to foot of valley wall , the tangent stress and the width of high tangent stress zone get gradually big , reaching maximum at the valley botton .

沟谷的下切形成的二次应力场除了关于沟谷中线基本对称外，不具备轴对称特征，从坡顶到坡角，切应力高值区内切应力量级和高值区的宽度逐渐增大，在沟谷正下方达到最大，甚至有可能突然增大。

The invariance property of the Krylov subspace is used to solve the large sparse complex symmetric linear system.

其中，利用Krylov子空间不变性求解离散得到的大型稀疏复对称线性方程组。

Results CT traits of EH: the symmetric cavitas subarachnoidealis fissure at the top of bilateral lobus frontalis widened at least 5mm; the border looked like "petal"; the front vertical fissure widened at least 7mm, the back vertical fissure was not wide; on patients with serious EH, the bilateral cistern of lateral fossa of cerebrum widened and suprasellar cistern increased while the ventricles of the brain did not increase or increased slightly.

结果 EH的CT特征为两侧额顶部对称性蛛网膜下腔间隙增宽≥5mm，边缘呈&花瓣样&，纵裂前部增宽≥7mm，纵裂后部不宽；严重者可伴双侧侧裂池增宽及鞍上池增大，脑室不大或轻度增大。

The normal mamillothalamic tracts and mamillary bodies were symmetric in size and signal intensity. The abnormal mamillary bodies were identified as asymmetric in size.

正常乳头丘脑束及乳头体两侧对称，信号均匀，与穹窿的信号一致；异常的乳头体表现为两侧不对称，一侧明显变小，并且乳头丘脑束显示不清。

Application of this theory to the spatiotemporal behavior of complex biochemical reactions has revealed symmetric patterns similar to the mandalas presented by C.G.

对于复杂生物化学反应的时空行为的这个理论的应用已显示出类似曼荼罗均衡模式，通过 C.G。

Denotes the Frobenius norm, S is a subset of Rn×n. This master thesishas mainly studied centrosymmetric matrix set, centroskew symmetric matrix set,re?

为Frobenius范数， S为Rn×n中满足某约束条件的矩阵集合，本硕士论文主要研究了中心对称矩阵、中心反对称矩阵、自反矩阵、反自反矩阵、双对称矩阵、对称次反对称矩阵、对称正交对称矩阵、对称正交反对称矩阵。

In chapter five,we discuss the problem whether the mid-point scheme can inheritthe homoclinic orbit of S-symmetric systems.

第五章讨论S-对称系统的中点格式对于同宿轨的继承性问题。

Mistuning destroysthe symmetric properties, and produce modal localization for a bladed disk. We definea modal localization parameter for the blade-disk system modes.

本文利用叶片的最大振动能量与其它叶片平均振动能量之间的相互关系，定义了一个系统模态局部化参数，该参数能够较为准确地反映叶盘系统模态振型的能量集中程度。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。