查询词典 limit cycle

The advantage, the luxury, as well as the torment and responsibility of the novelist, is that there is no limit to what he may attempt as an executant - no limit to his possible experiments, efforts, discoveries, successes.

的优势，奢侈品，以及作为折磨和责任小说家，是有没有限制什么，他可能试图作为一个执行者-没有止境，他可能实验，努力，有所发现，有所成就。

The conditions of the existence of limit cycles and the perimeter of the limit cycles are discussed and estimated.

本文的模型是对本文作者之一在多年前所提出和研究过的发酵模型的推广，这里我们对发酵产物与基质浓度的非线性函数关系做了进一步的深入研究。

Now the controllability theory in linear systems over the field R of real numbers has been heavily studied. This theory is efficacious for analyzing the characters which are determined by the value of physical parameters and system structure, nevertheless a practical system has a definite structure and has approximate, even unknown parameter sometimes because of a limit to experiment conditions, or a limit to making technology, the errors of observation. It is inconvenience for a linear system over the field R of real numbers to analyze the structure characters of a physical system, such as structural controllability.

目前，实数域上的系统的完全能控性理论研究已经很成熟了，它用于分析系统结构和物理参量的值共同决定的那些性能是有效的，然而，在工程中，由于实验条件或者制造工艺上的限制和观测上的误差，以及人为地对数据的近似处理，一个实际系统往往其结构是确定的，而参数只是近似的甚至未知的，实数域上的系统不便于分析物理系统的结构性质，如结构能控性。

In this paper, tolerance analysis mainly relates to three methods, viz."Extremum Method","Statistics Method" and "method of Monte Carlo". The character of the "Extremum Method" is to calculate the limit dimension of the close loop according to every limit dimension of the composing loop in order to ensure an entire frogging character, and get the tolerance of close loop.

极值法"的特点从保证完全互换着眼，由各组成环的极限值计算出封闭环的极限尺寸，从而求得封闭环公差；"统计法的特点是从保证大数互换着眼，根据各组成环的实际尺寸在其公差带内的分布情况，按某一置信概率求得封闭环尺寸实际分布范围，由此决定封闭环公差。

Industry pointed out that from the daily limit on the great seal, single and very weak trend of view, today Haitong Securities may limit again.

业内人士指出，从印章上的大单跌停，非常弱的趋势来看，今日海通证券可能会限制了。

Total data rate limit must be greater than or equal to per flow data rate limit.

总数据速率极限必须大于或等于每一数据流数据速率极限。

Per flow peak data rate limit must be greater than or equal to per flow data rate limit.

每一数据流数据速率峰值极限必须大于或等于每一数据流数据速率极限。

Total data rate limit must be greater than or equal to per flow peak data rate limit.

总数据速率极限必须大于或等于每一数据流数据速率峰值极限。

Total peak data rate limit must be greater than or equal to total data rate limit.

总数据速率峰值极限必须大于或等于总数据速率极限。

Derives the formulae for calculating the distortion and stress on the acting surface of flexspline load in the drive process of the harmonic gear drive with three-wave wavegenerator;(2) analyzes and compares the performance of plastic and steel products under light load drive and calculates the probably reached limit of drive ratio for both types of flexsplines under the same load;(3) applies the harmonic gear drive with three-wave wavegenerator to the small-sized multiple-revolution electric device of valves by taking into consideration of the low limit of the drive ratio for the harmonic gear drive with three-wave wavegenerator made of plastics, improves the design on the main drive mechanism of the traditional small-sized multiple-revolution electric device of valves, and validates through examples the feasibility for the harmonic gear drive with three-wave wavegenerator made of plastics to be applied to the small-sized multiple-revolution electric device of valves. Finally the author performs calculations on the two types of the flexsplines of the harmonic gear with three-wave wavegenerator by using the finite element method and analyzes the causes for the errors.

本文根据三波谐波齿轮传动的运动变形特点，采用弹性薄壳的力矩理论，推导了三波谐波齿轮传动柔轮载荷作用面上的变形及应力计算公式；分析比较了轻载传动情况下塑料和钢材的性能，计算了塑料制谐波柔轮和钢制谐波柔轮在相同载荷情况下可能达到的传动比极限；对塑料制及钢制三波谐波齿轮柔轮进行了有限元计算，分析了产生误差的原因；针对三波塑料谐波齿轮传动比极限低的特点，将之运用于小转矩多回转阀门电动装置中，对传统的小型多回转阀门电动装置的主传动机构进行了改良设计，并通过实例验证了三波塑料谐波齿轮传动在小转矩多回转阀门电动装置中应用的可行性。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。