1) plane vector
平面向量
1.
Senior Middle School Student Cognitive Characteristics of Plane Vector and Pedagogical Implications;
高中生对平面向量的认知特点及教学启示
2.
By using plane vector,the present paper introduced several methods to solve the problems often occurred in the fundamental courses of Mathematics in Normal University such as advanced geometry,primary geometry,spatial analytic geometry and primary algebra.
介绍了利用平面向量解决高等师范院校数学专业的基础课程《高等几何》、《初等几何研究》、《空间解析几何》和《初等代数研究》中的一些问题,体现了平面向量解题的独到之处。
3.
There added plane vector in the fifth part of Senior Middle School Maths(new edition),then many application of plane vector appear in the book.
新编高中数学教材(试验本)在必修课第五章中增加了平面向量,此后,向量的应用连续不断,若把平面向量用于解析几何中,则解析几何题的运算不再纷繁复杂。
3) quartic vector field
四次平面向量场
1.
Using the software Mathematica and bifurcation method of dynamical systems,the phase portraits of a quartic vector field are studied.
用数学软件Mathematica和动力系统分支方法对一类四次平面向量场的相图进行研究,参数半平面被9条分支曲线分成10个区域,在软件Mathematica下,每一个区域和每一条分支曲线上的相图被计算机画出。
4) planar Hamiltonian vector field
Hamilton平面向量场
5) radial plane
径向平面
1.
Rotary turming-milling machining radial plane of rotary part analysis;
回转车铣头加工回转体径向平面的浅析
2.
With turning milling technology,it is simpler to adopt linkage turning milling unit of two axis and rotation of one of them than to adopt linkage turning milling unit of three axis in structure when machining radial plane of rotary parts,but the former is more complicated than the later in machining programming.
利用此技术 ,采用二轴加转动的联动车铣头加工回转体上的径向平面要比采用三轴联动车铣头加工同样平面在结构上简单很多 ,但编制加工程序较为复
6) yaw plane
航向平面
1.
The integrated guidance/autopilot model of the yaw plane is formulated firstly.
提出了一种反舰导弹针对水面机动目标的航向平面控制导引一体化设计方案。
2.
A new yaw plane guidance law for missiles against small maneuvering targets on the sea is designed based on variable structure control theory, besides the method of estimating the information on the motion of the target is given ,which is needed in the guidance law.
基于变结构控制理论,针对小型水面机动目标,设计了一种新的导弹航向平面导引律,并对导引律中所需要的目标运动信息给出了估算方法。
3.
According to the dynamic equation of relative motion between the missile and the target,Lyapunov stability theory is used to design a new yaw plane guidance law for missiles.
根据导弹与目标之间的相对运动方程,应用李雅普诺夫稳定性理论设计一种新的导弹航向平面导引律。
补充资料：Darboux向量
Darboux向量
Darboux vector
L恤内.双向，【D山如扣x，“出万:八ap6y oe‘Topl 当一点M沿曲线L匀速移动时L的自然三棱形绕瞬时轴旋转的瞬时角速度向量占.Darboux向量位于曲线L的从切平面内，用L的切向量t和副法向量b来表示的公式是 占=了哥拜子(tcos口+bs谊。)，其中:和。是L的曲率和挠率，0是Darbeux向量与L切向量之间的角.借助于Darboux向量，F泊妞公式(F悦netfo皿tdas)可写为: i=[占，t]，血=[j，n]，b二[占，b]、其中b是L的主法向量. G.Darbeux“11)最先指出了空间曲线自然三棱形的Darboux向量的几何意义.【补注】自然三棱形(由S.Stemberg(【AI])采用的名称)通常称为Fr6net标架(Fr色net加Ine)，也称Fr白蛇t三棱形(Fr色net trib耐ron).【译注】E冶rbeux向量的表示式，在英俄文版中均有误，现予改正.在三维EucUd空间中，外积比，t1就是叉积占xt.
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条