查询词典 imaginary point

It has no secular energy error for the integration of periodic orbits with constant time-steps. The upper bound of mass was given for an imaginary planet in the main asteroid belt with this scheme.

演化模型是太阳系N体模型(N=7)，即把水星、金星、地球的质量加到太阳上，忽略冥王星，同时在小行星主带附近增加一个天体，系统演化时间为一亿年。

The invention refers to a method to correct universal frequency of electric communication technique, its character: make signal index quantization on the complex number of cross product, to directly reflect the quantized numerical value of tangent value and the located quadrant of imaginary and real parts, use inverse tangent ROM table to discriminate the processed result, then make loop filter and phase accumulation on the discriminated result to obtain error-correcting angle, and use digital controlled oscillator to make table look-up and quadrant adjustment to obtain correcting factor; use the relationship of trigonometric function in each quadrant to compress inverse tangent look-up table ROM and digital controlled oscillator look-up table ROM.

一种涉及电通信技术的通用频率纠正的方法，其特征在于：它采用如下步骤：经过叉积的复数进行信号指数量化处理，通过该复数虚、实部信号的指数量化结果的差值及其极性直接反映虚、实部的正切值的量化数值以及所处象限，将处理后的结果通过反正切ROM表进行鉴频，鉴频后的结果经环路滤波和相位累加，得纠偏角度，通过数控振荡器针对纠偏角度进行查表和象限调整，得到纠正因子；通过个象限之间的三角函数关系来压缩反正切查表ROM和数控振荡器查表ROM的大小，本发明资源耗费小，效率高，可极大地节省内存资源。

Moreover, by discussing the role of geometrical proof in Ars Magna and Cardano's attitude on irrational number, negative number and imaginary number, the paper points out that the role of geometry in Renaissance algebra had been tending weaker.

同时，通过考察几何证明在《大术》中所起的作用以及卡尔达诺对无理数、负数和虚数的处理，指出在文艺复兴时几何在代数学中的作用己逐渐减弱。

In all cases the number of interconnections between any'finite element' isolated by some imaginary boundaries and the neighbourng elements is infinite.

In所有的一切cases数的互相连接在中间any'finite element'被孤立的在附近一些虚数边界和neighbourng原理存在无限。

The optimization of water supply pipe networks is such a complicated work that includes creating networks model, calculating node demand, distributing initial flow, deciding initial imaginary flow, optimizing design, drawing pipe networks and isopiestic line .

给水管网优化系统是一个比较复杂的系统，包括建立管网的物理模型、计算节点流量、分配初始流量、确定初始虚流量、优化计算、绘制管网图及等压线图。

Chang's earlier film projects include Flotsam Jetsam (2007) in collaboration with David Kelley, a layered narrative addressing themes of landscape and identity against the backdrop of Yichang, a town near the Three Gorges Dam project; and Shangri-La (2005) which documented her real visit to the imaginary place of Shangri-La located in Zhongdian, Yunnan Province.

张怡先前的影片包括与大卫·凯利合作的《漂流物》（2007年），以三峡大坝附近的宜昌作为背景，运用多层次的叙事手法揭示环境与身份的主题；《香格里拉》（2005年）则记录了她实地考察文学中虚构的位于云南省中甸的香格里拉。

Nie: one is prohibited of working hours and days midday drinking, 2 is strictly accept students' parents banquets and gifts, Three is forbidden, imaginary ills, without absenteeism TuoBing leave, a second job, Four is prohibit fraudulent, shuffle disputes over trifles, encouraged and push the unity. Five is prohibited or corporal punishment in disguised forms, the corporal punishment student, 6 it is forbidden to student fees, and its items; apportion 7 it is forbidden to play CARDS, play chess, and time is not work related activities, 8 is prohibited in all kinds of test in violation of stipulations on the management of unity and jobbery, Nine is prohibited in in-service teacher paid tutoring; on-the-job Ten is strictly excessive increase student schoolwork burden.

聂局长：一是严禁工作时间和工作日中午饮酒；二是严禁接受学生家长宴请和馈赠；三是严禁无故旷工、无病呻吟、托病请假、从事第二职业；四是严禁弄虚作假、推诿扯皮、揽功推过、闹不团结；五是严禁体罚、变相体罚学生；六是严禁向学生乱收费、摊派资料及其它物品；七是严禁上班时间打牌、下棋及与工作无关的活动；八是严禁在各类考试中违反统一管理规定，营私舞弊；九是严禁在职在岗教师从事有偿家教；十是严禁过度加重学生课业负担。

With the help of his clever servant Covielle, Cleonte passes himself off as a Turkish Prince, and convinces Jourdain to give him his daughter in marriage in return for an imaginary title to be bestowed by a non-existant Turkish King.

在机智多端的仆人寇唯讷的帮助下，科兰特乔装改扮为一位土耳其王子，乔丹恩先生被说服将女儿嫁给王子，作为回报，王子许以重诺，那位并不存在的土耳其国王将授予其尊贵的名号。

The works blur imaginary and real worlds, and the artist gains more joviality than before in such creations.

它们模糊了虚构和真实之间的界线，在这个空间里艺术家获得了比从前更多的愉悦。

A good example of this imaginary model that helps is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.

在这个理论中，气体被描绘成由许多不断运动的小颗粒组成。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。