1) unifacial leaf
单面叶
2) individual leaf area
单叶面积
1.
In seedling stage (4 leaf stage),jointing stage,and milk stage the linear relationship between individual leaf area and total plant biomass (fresh weight or dry weight)on ground of white Horse Tooth maize (Zea may L)were studied.
）单叶面积与单株地上生物量（鲜重或干重）的回归方程。
3) schlicht surface
单叶曲面
4) uniparted hyperboloid
单叶双曲面
1.
The article has described the simplicity machining method of the tilted edge fingerlike gear cutter with uniparted hyperboloid matching tooth shape and the straight generatrix of the uniparted hyperboloid as the blade curve.
介绍用单叶双曲面拟合齿形,以单叶双曲面的直母线作刀刃曲线,用普通工具磨即可完成的斜刃指状齿轮铣刀的简易加工方法。
2.
This article not only discusses the ruled surface features of uniparted hyperboloid and its application in archtecture engineering but also discusses the teaching of the ruled surface.
本文主要讨论了单叶双曲面的直纹性,指出它在建筑工程中的应用,并对直纹面的教学作了探讨。
3.
It is proved that the surface organized by all the straight lines which are coplanar with three u-family rectilinear generators of an uniparted hyperboloid,which are not coincident with each other,is exactly the primal uniparted hyperboloid.
证明了与单叶双曲面上3条互不重合的u族直母线均共面的直线所构成的曲面正好是原单叶双曲面。
5) hyperboloid of one sheet
单叶双曲面
1.
Potential distribution of charged conductorwith surface of hyperboloid of one sheet;
表面为单叶双曲面带电导体的电位分布
2.
From the hyperboloid of one sheet of special section line,the article analyzes its property of ruled surface and deduces the parameter equation of another trigonometric function form,which agrees with the definition of the ruled surface.
从单叶双曲面上特殊截线出发,说明单叶双面的直纹性,导出单叶双曲面的另一种三角形式的参数方程。
3.
The paper proves that the surface normal,which is followed by rectilinear generators on hyperboloid of on sheet,comstructs the hyperbolic paraboloid generated by two same parabola,when rectilinear generators go through the vertex of waist ellipse,and it also deduces that the hyperboloid of one sheet is constructed by surface normal through a certain rectilinear generator.
证明了当单叶双曲面的直母线过腰椭圆顶点时,沿着它的曲面法线构成一个由二全等抛物线生成的双曲抛物面,并推导出对单叶双曲面,沿着它的任一直母线,曲面的法线均构成双曲抛物面。
6) plant leaf-area
单株叶面积
1.
Dynamic simulation models using logistic regression equations for plant leaf-area and plant aboveground air-dried weight over time were established.
结果表明,4个大豆品种的单株叶面积随时间的变化动态可以用修正的logistic曲线^y=k(1+ea+bt+ct2+dt3)-1来拟合。
补充资料：单叶函数的变分
单叶函数的变分
variation of a univalent function
单叶函数的变分〔variati佣of aun加习即t 6.比6佣;Ba-P，a双“二0八Ho“。cT“0益勿HK从““」 单叶函数论中的一个概念(见单叶函数(1川】valent仙letion)).在复平面的给定区域中，设存在一给定函数f(z)与一个依赖于实参数又的函数族F(:，劝，0簇几O，对所有又〔10，A」均在D内单叶.假定F(:，O)=f(:).作差F(:，又)一f(:)兰。(:，劝.函数f(z)(沿着族F(:，劝)的n阶变分(，:一th order variation)或n次变分(”一thvariation)，。=1，2，…，是。(:，劝关于参数又的展开式中又”的系数q，.(:)，且满足如下条件:余项 。。(:，又)=中(z，凡)一g，(z)又一·一g。(:)义”是之”的高阶无穷小量，且关于D中的z在D内紧集或D的闭包上一致.这些附加条件之一的选取常常决定于问题的性质，这些问题的解决涉及与单叶函数的变分有关的变分方法. J .Ha比llnard(【1」)与M .A.几aBpeHTLeB(【2〕)首先计算了一阶变分并给出了应用.要在某个特殊单叶函数类中通过函数类本身得到变分是一项复杂的任务，这是由于这种函数的非线性性质.对单连通与多连通区域中的某些函数类，这一任务已完成.【补注】在过去的半个世纪中，在单叶函数的变分理论中最有影响的人物是M M.Schiffer，他在该领域的最早的工作甚至囊括了月aBpeHTbeB的工作.见「A2}中关于Sc址ffer的工作的文献目录.对这一课题最完全的处理可在【AI]中找到;亦可见【A2]中的讨论. 还可见内变分方法(internal varin石ons，服山团of);边界变分方法(boun比汀y var扭tions，methodof).
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