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necessary condition相关的网络例句

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Based on the conclusion of experimental law, the photoelectric threshold condition is obtained for the semi-insulating GaAs photoconductive switch under the non-linear mode, pointing it out that, when the optic-energy triggers off the switch to meet the prerequisite that n_0L is greater than or equal to 10~(12)cm~(-2), the necessary condition is achieved for high field domain and meanwhile the threshold electric field serves to produce charge transmission effect within the material.

在总结实验规律的基础上,得到半绝缘GaAs光电导开关非线性模式的光电阈值条件,指出当光能触发使开关满足n0L≥10~(12)cm~(-2)时,达到形成高场畴的必要条件,阈值电场的作用是使材料体内产生电子转移效应。

This paper presents the two conditions:Sufficient condition and necessary condition for the links of perspective mapping and projective mapping.

本文给出了射影映射为透视映射的两个充要条件,这两个充要条件与射影变换为对合的充要条件是一致的。

The author believes that the demand is only a necessary condition for high prices, not sufficient condition.

笔者认为,需求是唯一的一个必要条件高价格,而不是充分条件。

However, insist on only a necessary condition for success, rather than a sufficient condition for success.

然而,坚持只是成功的必要条件,而不是成功的充分条件。

This paper gives the definition of the trivial solution to the high degree congruence x^ n = a, presents one sufficient and necessary condition for the congruence to have solutions, derives and proves one new judgment condition complementarily.

这篇文章给出了高阶同余方程 x^ n = a平凡解的定义,介绍了高阶同余方程有解的一个充要条件,补充推导和证明了另一个充要条件。

Since the lengths of the line segments and the angles between line segments are treated as representation parameters, it is convenient to construct energy function and to deal with displacement and length constraints. Based on this advantage, a parametrical model for human body is proposed, which can easily produce human body models with different feature sizes. The above method is just suitable for polylines. Therefore, a generic deformation method for both discrete curves and surfaces is presented. The energy function is constructed by analyzing the relationship of the points before and after deformation. Together with the displacement constraints, the deformation problem is converted to a convex quadratic programming. A necessary condition for constraint points and a sufficient condition for the uniqueness of solution are given. The proposed method can be combined with skeleton-driven animation to control the deformation.

将线段长度与线段之间的角度作为表示参数,既有利于能量函数的构造,又便于处理位移约束和长度内蕴约束条件,利用这一优势,将其应用于三维人体的参数化建模,可以方便地产生具有不同特征尺寸参数的人体模型,由于这种方法只适用于折线变形,具有较大局限性,因此,本文进一步提出一种较通用的离散曲线曲面变形方法,通过分析变形前后的位置关系来构造能量函数,再加上位移约束条件,将变形问题转化为一个凸二次规划问题,并且给出了约束点应满足的必要条件及模型解唯一的充分条件,这种方法还可以与骨架驱动变形的思想相结合,能更好的控制变形。

Li reduces the surface tension of aluminum luquid obviously, increases the ratio and rate of heterogeneous nucleation, which is the necessary condition of the formation of fine grains. However, a large amount of unmelted Al3Sc, Al3Zr TiAl3 particles dispersively distribute in the luquid metal along the edge of the molten pool, which is the sufficient condition of the formation of fine grains.

Li显著地降低了铝液表面张力,大大提高了异质形核率和形核速率,是细晶层产生的必要条件;而熔池边缘液态金属中弥散均匀分布大量未熔化的Al_3Sc、Al_3Zr和TiAl_3质点,则是细晶层产生的充分条件。

Under the conditions of q=2, G is a finite group of order mn ,where both m and n are odd prime numbers, the splitting is μ-1 , the necessary condition and sufficieat condition for the existence of such duadic codes are presented.

考虑q=2,G为mn阶非阿贝尔群且劈分为μ-1的duadic码存在的充分条件和必要条件。

It is demonstrated that existence of inflection point on velocity profile is a sufficient condition, but not a necessary condition for flow instability, for both inviscid and viscous flows.

它表明存在速度剖面拐点充分条件,但不是必要条件流不稳定,都粘和粘性流动。

Health performable financial system is the foundation of enterprising become larger, which is the one of the necessary condition of corporation fast developing on the condition the enterprise owns good core competitive power.

健全可执行的财务体系是企业壮大的根本保证,也是企业在具有良好核心竞争力的情况下能快速发展的充分必要条件之一。

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In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国,慢性酒精中毒,肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题,你可以随时联系我。

Very pretty, but the airport looks more fascinating The other party wisecracked.

很漂亮,不过停机坪更迷人。那人俏皮地答道。