Accurate agriculture to be called precise agriculture , it is an agricultural new strategy , and results , new and high technology - information technology and artificial intelligence in agricultural macroscopic , especially microcosmic application 精确农业又称精准农业，是一种农业新理念，该理念提出的主要依据是田间作物长势和环境分布不均匀，因而存在提效挖潜的空间，精确农业是信息技术和人工智能高新技术在农业宏观特别是微观应用的产物。
Drought and flood are two of the major disasters that human being have to face . the losses due to them may be more than 50 % of the total disaster losses in jiangsu province . many valuable researches on meteorological and agricultural drought and flood have been done in world 江苏省地处北亚热带、东临海洋，雨量充沛，气候湿润，但降雨量年际间变化大，年内分布不均匀，造成不同年份干湿状况差异较大，常有非旱即涝的现象，给主要作物生产带来非常不利的影响。
Compared with the same capacity coal - burning boiler , the objective appraisal is formed of trial - product , in processing characteristic , price , operation difficulty , safety and so on . with the performance tests in thermal performance and environmental protection index , etc . , the synthetic function is appraised of burning equipment 从而为生物质成型燃料燃烧设备燃烧方式确定，运行状态的调整，炉膛设计及技术改进提供了可靠的科学依据，同时对炉膛内局部温度分布不均匀原因也进行了分析，从而为炉膛的优化设计提供了理论指导。
Computer network has been characterized by features like heterogeneous connection , uneven dispersiveness and openness , which also result in its vulnerability to be attached by hackers , malicious unauthorized intrusion . that ' s why network security has been attracting people ' s attention in various fields 但由于计算机网络具有联结形式多样性、终端分布不均匀性和网络开放性等特征，致使网络容易受黑客、恶意软件和其他不轨的攻击，网上信息的安全和保密已受到人们广泛的关注。
In the upper troposphere , there is no intact asian active center . the troposphere structure of summertime ao is implicated with the horizontal heterogeneity of air temperature throughout the whole troposphere with its center over asian continent , which results in the zonal asymmetry and baroclinic structure of the summertime ao ( especially its asian center ) . on the contrary , the correlation between wintertime ao and sea - land thermal contrast confines in the lower troposphere , hence its zonal asymmetry and baroclinity in the lower level 夏季北极涛动的这种结构与对流层整层的温度水平分布不均匀性有密切联系，且这种温度分布差异主要体现在亚洲大陆，因而也就使北极涛动的中纬度亚洲中心呈现出比同纬度带其它区域更为明显的纬向非对称性和斜压性；而冬季北极涛动受下垫面海陆分布差异影响，其纬向非对称型和斜压性质主要出现在对流层中低层，在对流层高层表现出很强的环形模态和正压结构。
On the other one hand , computer network join form much shape and terminal distribution not uniformity and the openness of network etc . feature , cause the safe hidden trouble of network more and more , it is more and more low that network attack is asked for invading the technology of , attack means more and more advanced , more and more conceal , endanger also more and more big 然而，由于计算机网络具有连结形式多样性、终端分布不均匀性和网络的开放性、互联性等特征，致使网络的安全隐患越来越多，网络攻击对入侵者的技术要求也越来越低，攻击的手段越来越先进，越来越隐蔽，而危害也越来越大。
The cellular localization of hse was done by using in situ hybridization , the results showed that primary spermtatocytes and spermatids in seminiferous tubular have positive signals . the subcellular localizations of hsei and hseii were identified by gfp fusion protein . hsei - gfp fusion protein was evenly distributing in cytoplasm , while hseii - gfp was not evenly distributing in cytoplasm and there were many bright spots in cytosol 用gfp高合蛋白的技术确定hsei和hsell在细胞中勺定位，结果显示hsei gfp均匀地分布于细胞浆中，而hsell0fp则分布不均匀，在胞浆有聚集成许多荧光信号很强的点。
A mathematical model of flows in the substrate was established using the equivalent continuum approach , and multi - dimensional numerical simulation of the steady flows in the catalytic converters was performed . simulation results show that the separation and vortex , which cause the pressure loss and the velocity non - uniformity at the front of the first substrate , are generated near the wall of the conical pipe . in addition , the larger the inlet cones angle the more the pressure loss and maldistribution in converters , however , when the angle enlarges enough the pressure loss would be decrease 结果显示气流在扩张圆锥管壁附近出现分离产生较强的扰动，造成局部流动损失和载体前气流速度沿径向分布不均匀；入口扩张管结构对催化器的流动特性有很大影响，但并非扩张角越大，催化器流速武汉理工大学硕士学位论文分布的不均匀性和压力损失也增大，而是存在着一个最佳角度，但当扩张角增大到一定程度以后，扩张角对流速分布和压力损失的影响变小。
Fortunately , the modern geodetic measurements such as the global positioning system ( gps ) technique can overcome the shortage of the geological and seismographic methods in the time dimension ; and yet , the coverage of the geodetic survey stations is not sufficient . as a result , it is necessary to employ numerical simulation to investigate the continuous deformation of the crust 而以全球定位系统( gps )等技术为主的大地测量方法弥补了地质和地震学方法在时间维上的不足，但大地测量方法存在测点覆盖不足及测点地理分布不均匀的缺点，因此，要得到连续的地壳形变场有必要借助数值模拟方法。
