时段

First, the velocity and temperature data were collected in the period of simulation using three-cup anemoscope and hygrothermograph in different heights. Then Monin-Obkhov wind and temperature vertical profile were fitted by applying least square solution. Temperatures of different time in specific point were measured. Firsthand information in land surface was collected and anthropogenic heat profile of different time was investigated.

首先，利用在不同高度上面设立的三杯风速仪和温湿度计收集了两个计算模拟时段的风速和温度资料，然后采用最小二乘法拟合得出Monin-Obkhov风温廓线；在区域内布点测量不同时段的温度值，收集地表的一些原始资料；调查区域内的不同时段的人为产热分布。

Discontinuous transmission is an important function in mobile communication.

1引言非连续传输技术(Discontinuous Transmission，简称DTx)又称话音激活技术，是数字蜂窝移动通信系统十分重要的功能之一，它通过动态检测输入端的有话音时段和无话音时段，改变话音编码速率，以达到降低无话音时段的信息传输流量，同时自动调整发射机的开和关，即只在输入端有话音

From actual receiving state, increasing differentiation of the TV embracer" s demands and the incertitude of receiving behaviors will make the two conception of the borderline out of focus. All of these have established realistic base on research of "Non-prime time of TV.

就目前的电视收视状况而言，受众收视需求的日益分化和收视行为的不固定，使电视"黄金时段"与"非黄金时段"的界线日益模糊，这为我们重新认识与研究"非黄金时段"奠定了现实基础。

The interannual variation of winter negative accumulated temperature can be denoted in three periods of time: cold winters from the middle 1960s to the early 1970s; the transitional period of alternate cold and worm winters from the middle 1970s to the late 1980s; worm winters in the 1990s.

冬季负积温的年际变化呈现3个时段，20世纪60年中期到70年代初为冷冬时段，70年代中期到80年代末为冷冬与暖冬交替出现的过渡时段，90年代后至今为暖冬时段。

The rainstorm process is a complex and stochastic multi-dimensional process.A correlation exists between the maximal annual period-storm and the rainfall duration,with overlooking many factors,the parameterwill not be a constant.Since 1980s,heavy rain and flood of small basins can be calculated by auto-recording rainfall observation system,and 20-year's self-recording rainfall data can improve the calculation accuraey.

暴雨过程是一个复杂的多维随机过程，年最大时段暴雨xt，p与暴雨历时t的暴雨公式属于经验相关关系，忽略了不少影响因素，因此，公式中参数n值不会是稳定不变的。20世纪80年代以后，随着自记雨量观测应用，到目前已经有20多年的资料系列，小流域暴雨设计的计算就可以直接利用时段实测降水资料系列进行计算，设计洪水时，可根据实测雨量时段资料，计算该设计流域的n值，可提高计算精度。

There is none other God but Thee, the Help in Peril, the Self-Subsisting.

"22 *"早晨"指日出至中午时段；"中午"指中午至日落时段；"傍晚指日落后两小时时段。

Fujian region exhibits a consistent southeastward movement: the average velocity before the earthquake was 32.1 mm/a; the velocity during the earthquake and in the two years after the earthquake t...

福建地区存在一致的南东向运动地震前(第1时段)运动速度平均为32.1mm/a；震时和震后两年时间内(第2时段)运动速度大幅度增加到38.7mm/a；震后第2个两年(第3时段)运动速度相对于第2时段大幅度减小为30.0mm/a；震后第3个两年(第4时段)，运动速率相对第3时段有较大增加并超过了第1时段。

In China, where the present is to a certain extent history, snapshots can be misleading; discourses should integrate different "clocks" and be attentive, behind shorter developments or even ephemeral fashions, to very slow movements, what Fernand Braudel (1902-85) called the longue duree.

我们应去除短暂发展时期（更不用说那些短命的时尚趋势）的干扰，将它们整合进历史长河中一些缓慢但关键的演变运动中进行深入分析。这也就是法国史学家、&总体史&的集大成者费尔南多。布罗代尔（Fernand Braudel，1902-1985）所强调的长时段。他把历史时间划分为&短时段&、&中时段&、&长时段&，并认为长时段才是把握和认识历史的关键。

By comparing different processes in the same period, following operting modeof interactive reactor was recommend: enhanced A~2/O process fits on spring period,pre-anoxic inverted A~2/O process was recommend in dry/mizzle weather in summerperiod, step aeration process was adopted in rainy weather in summer period,alternating oxygen concentration inverted A~2/O process was appropriate in autumnperiod, and normal inverted A~2/O process was better in winter period.

通过不同季节多种工艺的比较，确定了高效生物反应器运行模式：春季时段采用改良型A~2／O工艺，夏季晴天／小雨时段采用预缺氧+倒置A~2／O工艺，夏季连续暴雨时段采用多点进水工艺，秋季时段采用低氧／常氧交替运行的倒置A~2／O工艺，冬季时段采用常规倒置A~2／O工艺。

Based on the results simulated by PRECIS (Providing Regional Climates for Impacts Studies), which is developed in the Hadley Centre for Climate Prediction and Research, changes of surface air temperature and precipitation under SRES B2 scenario in South China during 2071~2100 are analyzed. It is shown that, compared to baseline (1961~1990), surface air temperature in 2071~2100 would increase by 2~4℃, precipitation in summer would increase in the north part to 22°N, while the precipitation in winter would decrease in the whole areas of South China. The climate trend of the surface air temperature would be positive, however the climate trend of the precipitation would be negative, the occurrence frequency of extremely high temperature events and extremely heavy precipitation events would increase.

利用英国Hadley气候预测和研究中心的区域气候模式系统PRECIS，模拟分析基于政府间气候变化专门委员会 2000年发布的《排放情景特别报告》中设计的B2情景下华南区域2071~2100年的温度和降水量的可能变化，结果显示：2071~2100年均地面温度相对于气候基准时段（1961~1990年）上升约2~4℃；华南区域未来夏季降水量在22°N以北区域较气候基准时段增加，而以南区域减少；冬季降水则表现为华南区域较气候基准时段减少。2071~2100年华南区域的温度气候趋势系数为正值，年均降水气候趋势系数为负值。2071~2100年的高温事件和强降水事件的发生频率均比气候基准时段明显增加。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。