1、

Based on classical dynamical equation on rotation of fluid core Earth, a associated dynamical equation containing both nutation and wobble of Earth rotation have been deduced through introducing motion of nutation frame system with respect to inertial spatial frame.

以经典的液核弹性地球自转动力学理论为基础,通过引入章动坐标系相对惯性空间的运动,建立液核地球极移和章动的联合动力学方程。

互联网摘选

2、

Rotation angle symbol method to identify circuit and branch of spherical four bar is presented in this paper. Finally, the method about application to spatial first group mechanism is elaborated.

最后由空间第一类机构与球面四杆机构的等效性,阐述了将此识别方法应用于第一组空间机构的方法。

互联网摘选

3、

Compared with airborne SAR, such factors as complicated spaceborne SAR spatial geometric relationship, earth rotation and earth surface curvature etc. make the realization of spaceborne SAR/ GMTI complicated.

与机载合成孔径雷达相比,星载合成孔径雷达由于其复杂的空间几何关系、地球自转及地球曲率等因素的影响,使得星载SAR/GMTI的实现更为复杂。

互联网摘选

4、

The method of rotation vector and software of MATLAB were used to analyze the displacement of the spatial 7R mechanism and confirm every pole and connection direction unit vector.

利用向量回转法和MATLAB软件对空间7R机构位置问题进行了分析研究,确定了各杆长和副长方向的单位向量,列出了机构的向量封闭方程,以及各杆位置方程;

互联网摘选

5、

predictability of spatial ability using image mental rotation test

表象旋转测验预测空间能力的有效性

互联网摘选

  • 今日热词
  • 热门搜索

英语网英语词典(dict.25820.com)为您提供在线翻译英语词典单词大全英译汉汉译英等英语服务!可按单词字数词义分类查询。支持lj:关键词格式查询例句。

用户反馈
请选择反馈类型(可多选):
您的联系方式:
反馈内容:
提交成功 小编会尽快处理
回到顶部
点击反馈