查询词典 longitudinal

Aerodynamic force,moments,and longitudinal stability derivatives are estimated by three-dimensional low-order panel method.

涉及的气动力、力距和纵向稳定导数等则由三维低阶板块法计算获得。

Aerodynamical parameters in longitudinal model of a certain type of helicopter are identified in the paper.

直升机气动参数辨识是气动参数辨识研究的热点和难点之一。

Aerodynamical parameters in longitudinal model of a certain type of aeroplane are identified in the paper.

论文研究了利用参数辨识方法确定飞机纵向运动模型参数的问题，在分析飞机特性的基础上选取了飞机纵向小扰动线性运动状态方程和纵向非线性运动方程作为辨识的模型，以某型飞机飞行试验实测数据为例对其进行数据预处理之后辨识了模型中的气动参数。

The reservoir traverse quite be stable, but the relative property is quite strong, by the southwest to northeast, the characteristic of the porosity growth is degression tendency. On longitudinal it is the permeability variation in a big way, and the aerosphere scope small.

研究区须家河组储层横向分布比较稳定，可对比性比较强，由西南向东北，孔隙度发育有递减的趋势；纵向上具有渗透率变化大、气层范围小的特点。

This paper first analyses the stress acting on the cable by means of tiny segment analytical methods, establishes cable's stress equation, and finds out the relation between the tethered aerostat's position and its stress acting by cable; then, based on the momentum and moment of momentum theorem, the longitudinal nonlinear dynamic equation is established; Finally a numerical simulation of dynamic responses of the balloon and cable to gust are carried out.

本文首先通过微段分析法对缆绳进行受力分析，建立缆绳的受力方程，找出了系留气球在空中的位置同系留气球所受缆绳拉力的关系；然后根据动量和动量矩定理建立了球体的纵向非线性运动方程；最后通过数值仿真计算，对系留气球的纵向动态响应特性进行了分析。

Aggregate fruit globose or ovoid; achenes bilaterally compressed, with 2 or 3 longitudinal thin ribs on each side; style persistent, straight or curved.

聚合果球状或卵球形；瘦果两侧压缩，带有2或3纵向薄棱在每边；花柱宿存，直或弯曲。

The aileron control system provides the means of rotating the airplane about the longitudinal axis.

副翼控制系统提供飞机纵向转动的方式。

Adequate numbers of drain holes and air holes shall be provided on the bottom longitudinal and -transverse structures..

所有舱内设置足够数量的人孔以便出入，船底和纵横结构设置足够数量和尺寸的流水孔和透气孔。

All compartments shall be arranged with sufficient number of manholes to facility access to these areas, sufficient number of drain holes and air holes with appropriate size in area of bottom, transverse and longitudinal structures are required.

所有舱内设置足够数量的人孔以便出入，船底和纵、横结构设置足够数量的尺寸的流水孔和透气孔。

This is the first population-based longitudinal study to show that changes in weight are associated with parallel changes in albuminuria.

这是首次基于群体学的纵向调查研究，来说明体重变化与蛋白尿平行变化的相关性。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？