Based on observational data of 146 meteorological stations around the yellow river basin from 1960 to 2000, the spatial and temporal distributions of the sunshine percentage are studied 摘要利用黄河流域及其周边146个气象站1960-2000年逐月日照百分率资料,研究分析了黄河流域日照百分率的气候变化趋势。
A computerised system with geographic information system technology helps visualise the spatial and temporal distribution of red tides and provides a quick analysis of their development and movement 内置地理信息系统技术的电脑系统,能有效显示红潮的地域和时间分布,并能快速分析红潮的发展和移动情况。
So cscw is increasingly important . the goal of research is to use computer and communication technique to overcome spatial and temporal obstacles of group work . consequently, work efficiency is enhanced cscw的研究目标就是利用计算机和通信技术来克服小组工作的时间和空间的障碍,从而取得更高的工作效率。
In addition, this coder has the function of spatial and temporal scalability . 3 . extending the previous algorithms experience to color video we create a new algorithm of joint mdc and ecn techniques 3、将md-3d-spiht与差错隐藏的联合抗误码算法扩展到彩色视频,提出彩色视频mdc与差错隐藏结合的差错复原算法。
On the basis of functional of the unstable 3d temperature field, the spatial and temporal sepration of the fem implicit solution are studied, and the control equation of the fem calculation is derivated 在不稳定温度场泛函基础上,研究了不稳定温度场隐式有限元计算方法空间离散和时间离散过程,得到相应控制方程。
Using the technology of the geographic information system, the new system is able to visualise the spatial and temporal distribution of red tides and provides quick analysis of their development and movement 这套新系统采用地理信息系统技术,能有效地展现红潮的地域和时间分布,并可以快速分析红潮的发展和移动情况。
The spatial and temporal distribution character for lightning of the westerly zone systems and tropical systems that influence the south of china is studied and analyzed, and the difference between them is compared 摘要对影响华南的西风带系统和热带系统的各类云系闪电时空分布特徵进行分析研究,比较它们之间的异同。
The landscape dynamics in spatial and temporal change of movable and semi-fixed sandy lands in horqin are analyzed and the main reasons of dynamics in spatial and temporal change of sandy lands are analyzed also 摘要研究分析了50年来科尔沁流动沙地和半固定沙地景观时空动态变化,并分析了沙地时空动态变化的主要成因。
The landscape dynamics in spatial and temporal change of movable and semi-fixed sandy lands in horqin are analyzed and the main reasons of dynamics in spatial and temporal change of sandy lands are analyzed also 摘要研究分析了50年来科尔沁流动沙地和半固定沙地景观时空动态变化,并分析了沙地时空动态变化的主要成因。
These laboratory test results together with the spatial and temporal distribution of cases in amoy gardens and the epidemiological picture argue against airborne transmission or transmission through contaminated water 这些化验结果、淘大花园个案的时序及空间分布、及流行病学分析,均推翻了经由空气或食水传播的可能性。