查询词典 variations

The diurnal variation of precipitation and effects of water vapor and temperature on precipitation are simulated by a three-dimensional cloud model. The cloud model reproduces the maxima and minima of diurnal variations of precipitation and reflectivity. The high humidity in low level at night is the key factor for the precipitation.

同时，利用三维云模式模拟了降水的日变化和水汽及温度对降水的影响，云模式再现了降水和回波强度的最大和最小值，晚上低层的高湿度是影响降水的重要因素。

Indeed, because of output digital stability, the hopfield neural converter can allow for unwanted analog-input-signal noisiness or variations.

这个情形与传统模拟传输媒介和数字计算装置之间的接口电路形成了强烈的对比。

It developed variations in nomenclature and in substance.

它在名称上和实质上都发生了一些变化。

The variations of CKC may be the main reason for the chromosomal nondisjunction during meiosis that is attributed to the adverse pregnancy.

CKC变异频率增高可能是导致不良孕产非整倍体形成的主要原因之一。

Matrices, Vector and Vector Calculus, Newtonian Mechanics-single Particle, Oscillations, Nonlinear Oscillations and Chaos, Gravitation, Some Methods in the Calculus of Variations, Hamilton's Principles Lagrangian and Hamiltonian Dynamics, Central-Force Motion, Dynamics of a System of Particles, Motion in a Noninertia Reference Frame, Dynamics of Rigid Body.

矩阵和向量的计算、单一质点的牛顿力学、线性与非线性的振动运动、重力、微积分上的变分法介绍、哈密顿原理、拉氏及哈氏力学、连心力下的运动、质点系的运动力学、在非惯性坐标中的运动、刚体的运动。

Research has been put out on several main reproduction hormaone's variations on the white geese in West Anhui during reproductive and nonreproductive periods.

本文研究了皖西白鹅雌鹅几种主要生殖激素在生殖期与非生殖期的变化情况。

The ability of the ionosphere to reflect these waves is dependent upon normal variations in the electron density at different levels.

电离层反射电波的能力取决于不同高度上电子密度的正常差别。

Based on temperature and salinity data from 17 cruises along the 165°E section during 1984-1988 which were attained by the Sinuo-US cooperative air-sea interaction study and ORSTOM center in Noumea, the anomalous variations of temperature and salinity structures in the upper layer of the ocean in the periods of 1986-1987 E1 Nino and 1984-1985, 1988-1989 La Nina events were analyzed.

使用1984—1989年期间中美海-气相互作用合作研究及法国ORSTOM完成的沿165°E断面共17个航次调查中的温、盐资料，对1986—1987厄尔尼诺（E1Nino）及1984-1985，1988年反厄尔尼诺事件期间海洋上层温、盐结构的变化作了分析。

For the characteristic of ring permanent magnet torque motor used in direct drive numerical control round table suffering from the effect of load disturbances and parameter variations, the H∞ controller design methodology without the orthogonality assumptions is combined with m-K iteration in m synthesis to design a m-H∞ speed controller in this paper.

针对直接驱动数控转台用环形永磁力矩电机易受负载扰动及参数变化影响的特点，将去除正交性假设的H∞控制器设计方法与m综合中的m-K迭代法相结合，设计了一个m-H∞速度控制器。

For the characteristic of the ring permanent magnet torque motor used in direct drive numerical control round table suffering from the effect of load disturbances and parameters variations, a multi-objective mixed H2/H∞ static output feedback controller, which makes all poles of the closed-loop system be located within a prescribed linear matrix inequality region D to achieve pole placement, is designed based on LMI.

针对直接驱动数控转台用环形永磁力矩电机易受负载扰动及自身参数变化影响的特点，文中基于线性矩阵不等式(linear matrix inequality， LMI)，设计了一个多目标混合H2/H￥静态输出反馈控制器，该控制器可使闭环系统的极点均落在预先选定的线性矩阵不等式区域D内来实现极点配置。

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％。