截止

In order to investigate the law of the unstability during the evolutionary process in genetic algorithms, two novel concepts of the truncated generation and the distribution of truncated generations are firstly presented, and their definitions are also detailed.

为了研究遗传算法进化过程中的非稳定性规律，文中首次提出了进化截止代数和进化截止代数分布两个新概念，并给出了它们的具体定义。

The average truncated generations" and "the distribution entropy of truncated generations are used to evaluate the optimization efficiency of CGA.

本文将"平均截止代数"和"截止代数分布熵"作为评价指标，对混沌遗传算法的优化效率进行了研究，定量地评价了CGA的优化效率，通过与遗传算法进行比较，进一步说明了CGA的优化效率高于GA。

Unique for features of the ZWB555 straight pattern blobbed gives improved flow measurement accuracy and lower head loss characteristics compared to "Y" pattern globes, all and plug style balancing valves.

与Y形截止阀结构、球阀结构和旋塞阀结构平衡相比，ZWB555直线形截止阀结构平衡阀的独特功能，改善了流量测量的精确度，减少了压头损失。

Velan bellows are designed for 10,000 cycles for 1/2–2"(15–50 mm) globe valves, 5000 cycles for bonnetless globe valves and 3000 cycles for 1/2–2"(15–50 mm) gate valves.

Velan波纹管设计寿命为DN15-DN50截止阀10，000次，无盖截止阀5000次，DN15-DN50闸阀3000次。

It was indicated by SEM spectra of ZnO thin films that the surface of the sample was leveled off, and the crystals were felsitic. It was found from the experiment that, with the increasing of substrate temperature, there were more oxygen vacancies in the films, which lead the conductance of the sample become larger , and the absorb edge of ZnO thin films shifted toward higher wavelength; with increasing of Ar:O2 ratio, there were lesser oxygen vacancies in the films, which lead the absorb edge of ZnO thin films shifted toward lower wavelength.

实验还发现，随着衬底温度的升高，薄膜中产生的氧空位将会增多，使得ZnO薄膜的电导逐渐增大，而且其紫外透射吸收截止边带向高波长方向漂移；随着氩氧比例的增加，薄膜中的氧缺陷相对减少，薄膜的透射吸收截止边向低波长方向漂移。

The solution is "Self-regulation through daily writing, brief work sessions, realistic deadlines, and maintaining low emotional arousal" whereas "Binge writing - hypomanic, euphoric, marathon sessions to meet unrealistic deadlines - is generally counterproductive" p.

切合实际的截止日期，保持低幅度的情绪波动。&反而&轻度狂躁地，欣快地，马拉松式的作业方式去达到不切实际的截止日期，经常是会起反效果的。

The main products are: gate valve, globe valve, check valve, filter, ball valve, bellows globe valve Trigonella brand malleable economy HSG, HG, HSS, HS, HSC, HC, HSCS, HST, DB2 Trigonella card malleable standard D10G, D20G, D10S, BD10D, BD10

主要产品有：闸阀、截止阀、止回阀、过滤器、球阀、波纹管截止阀胡芦牌玛钢经济型HSG、HG、HSS、HS、HSC、HC、HSCS、HST、DB2胡芦牌玛钢标准型D10G、D20G、D10S、BD10D、BD10L、D10C、D10T。

From point of view of Fourier theory, an optical system behaves as a low-pass filter which debars spatial frequency information about the object beyond the diffraction limit cut-off frequency.

按照傅立叶光学的观点光学系统是一个低通滤波器，其传递函数在由衍射极限分辨力所决定的截止频率以上值均为零，因此图像截止频率以上的能量和信息被丢失。

It is shown that the harmonic spectrum is extended to in the case of the combined fields, and an isolated 63 as pulse can be obtained by superposing around the cut-off position of the high-order harmonic generation spectrum.

研究结果表明，氦原子在这种组合场驱动下，高次谐波谱的平台区域能得到很大的扩展，其截止位置可延伸到，通过构造截止位置附近的高次谐波谱能够得到脉宽为63 as的单个阿秒脉冲。

We've mainly produced many types of marine fittings with a completed list of specifications as per such standards as JIS, DIN ANSI and BS, including flanged valve, cast steel stop valve and angle valve, cast iron stop valve and angel valve , storm valve, fire valve, air plug and filter.

瑟维思公司采用先进的管理模式，建立了一套完善的质量保证体系，可为用户提供售前售后一条龙的服务。本公司主要生产日本标准JIS。以及DIN，ANSI，BS等标准和船用法兰阀门，铸铁截止阀/角阀。铸钢截止阀/角阀，防浪阀。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。