查询词典 tangent

This thermal structure is approximate to a hyperbolic tangent profile, which allows theoretically that a mode-2 ISW propagates along the thermocline with permanent form (Benjamin, 1967 and Davis and Acrivos, 1967, etc).

这种密度垂直结构近似於双曲正切函数，理论上可以求得一个在斜温层传递且形状不变的第二斜压模之内孤立波的解析解(Benjamin， 1967 和 Davis and Acrivos， 1967，等人)。

By introducing non-relativistic, adiabatic and quantum approximation to NLCMEs in the FBG with hyperbolic tangent apodization, and assuming the soliton as a particle with low velocity and invariant energy, the track equation of soliton is obtained.

利用双曲正切中间变迹光栅中的NLCME，引入非相对论-绝热-准量子近似法，将光栅孤子作为一个低速运动且能量守恒的整体进行分析，得到了孤子的轨迹方程。

Theorem 2: the locus of foot point of the perpendicular line of between the origin and the tangent line of the cylindrical spiral is on the simple leaf camber hyperboloid of one sheet .

定理2 由坐标原点至圆柱螺线的切线所引垂线的垂足轨迹在单叶双曲面上。

Establish geometry model of hyperboloid clutch with rollers with differential geometry. We know that the line of tangent is beeline and validate it with Matlab.

利用微分几何相关知识建立了内外环的双曲面等距曲面及滚柱的几何模型，求解出其接触线为直线并用MATLAB进行了理论验证。

In this thesis, we mainly study the relations between compact minimal hypersurfaces of S~(n+1)(1) and the Clifford minimal hypersurface of S~(n+1)(1) by their spectrums, and the relations between unit tangent sphere bundle T_1 M and its base manifold M.

在本文中，我们主要通过谱研究了S~(n+1)(1)中的紧致极小超曲面和S~(n+1)(1)中的Clifford极小超曲面之间的关系，以及单位切球丛T_1M与它的底流形M之间的关系。

The line connecting the point and the center bisects the included angle of the two tangent lines.

这一点和圆心的连线平分这两条切线的夹角。

Mathematical legacy 数学遗产 Descartes' theory provided the basis for the calculus of Newton and Leibniz, by applying infinitesimal calculus to the tangent line problem, thus permitting the evolution of that branch of modern mathematics.

通过对切线问题的极限计算，笛卡尔为牛顿和莱布尼茨的微积分奠定了基础，所以使得这一近代数学分支的发展成为可能。

The overcutting on tool end is checked via comparing the tool radius with the circumradius or the radius of inscribed circle, and the touch interference of tool body based on the symbol of the vector distance from the triangle vertex to the tangent plane of tool body column.

在曲面加工的无干涉路径规划中，通过恰当选择刀具初始位置避免了接触点处的曲率干涉；通过比较刀具半径与曲面上三角片外接园半径的大小即可判断刀具底面干涉；而根据三角片顶点与刀杆切平面的有向距离的正负来判断刀杆碰撞干涉。

The spectrophotometric method examination resultindicated, withdraws sample DNA rate in, OD260/280 value in;Agarose the gelatin electricity swims the examination result to indicate,molecular weight size about 23kb; Withdraws sample DNA may use EcoRIand the HindIII restrictive internally tangent enzyme carries on cuts.

分光光度法检测的结果表明，提取的样品DNA得率在20ug/g-80ug/g之间，OD260/280值在1.9-2.0之间；琼脂糖凝胶电泳检测的结果表明，分子量大小在23kb左右；提取的样品DNA可以用EcoRI和H indIII限制性内切酶进行切割。

If the amount of interphase and slit between the interphase increased, the loss tangent would increase.

材料相界面数量的增加以及相界面之间空隙的加大都使内耗大大提高。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷