Class Ⅲ had an area reached up to 495.80 hm^2, occupying 38.3% of the total, which could be moderately exploited, and artificial landscape was advocated to beautify and set off natural landscape. Class Ⅳ had the smallest area (142.80 hm^2), accounting for 11% of the total, which had the greatest potential of exploitation, being possible to build large-scale integrated tourism facilities and travelling roads.
级敏感区的面积依次为297.24和359.72 hm^2，分别占研究区总面积的22.9%和27.8%，Ⅰ级敏感区内景观应严格保护，禁止任何人为开发建设，维持自然景观的本色，Ⅱ级敏感区内除简易的林间小道和石阶山道外，严禁开山取石、破坏植被和水体。
The evolution of ionospheric storm over China are analyzed, it is found that the negative storm becomes strongly and moves gradually from higher latitude to lower latitude. During the storm period, a positive storm also occurred sometimes in the lower latitude. The results show the advantage of GPS method for studying this kind of ionospheric disturbance. In the end, the effect of solar event on ionosphere happened on July 14～16 are also studied using IGS GPS data and GONET GPS data over Japan which is the densest GPS network in the world. Two phenomena are analyzed, including one flare effect on ionosphere and one large scale traveling ionospheric disturbance observation. The results show that the TID moves nearly along the longitude line from higher latitude to lower latitude and the velocity is about 600～700m/s. The wavelength of the TID between 15:00 and 17:00 is about 2100km, which is one very large scale travelling ionospheric disturbances.
发现耀斑的X射线最大辐射通量，耀斑的日盘位置以及耀斑发生时的地方时都是影响耀斑期间电离层TEC增幅的重要因素；同时利用GPS和测高仪资料，研究了2000年4月6～7日磁暴期间的电离层状态及电离层暴的时空演化特性，显示了这次电离层负相暴的发生和发展过程，较高纬度地区的电离层负相暴逐渐向赤道方向移动，并且随时间有所增强，而在武汉的较低纬度地区，一定时间内还出现了电离层正相暴，其结果充分说明了利用GPS方法研究电离层暴的优点；利用全球GPS观测网以及日本GPS观测网，研究了2000年7月中旬太阳事件期间的电离层状态，观测到了一次大尺度的电离层行扰，发现该电离层行扰几乎沿着经线从北向南运动、其运动速度在600～700m/s左右、在世界时15：00～17：00左右的TID扰动波长在2100公里左右，是一次非常大的电离层行扰。
There are several hundreds of sets of advanced machining facilities and perfect quality control system including 30, 000 square meters manufacturing workshop, 200T overhead travelling crane, φ 200mm ground boring and mill machine, 4M × 12M pentahedron machining center, 5M vertical lathe, 3.15M gear machining facilities, high precision and large scale digital controlled grinding machine and various kinds of digital controlled lathe etc.
公司拥有先进的生产设备和完备的质量管理体系，有3万平米的大型生产车间，200吨的起重行车、φ200落地镗铣床、4米×12米五面体加工中心、5米立车、3.15米齿轮加工设备、高精度大型数控磨床和各类数控车床等大中小型机械加工设备数百台。
Analysis and Research for All Hydraulic Travelling System of Large-scale Pavement Construction Equipment of Independent Four-wheel Drive
四轮独立驱动的大型路面施工设备全液压行走系统的分析与研究
From the Ming and Qing Dynasties, along with the acceleration of the development progress in south of the Five Ridges, the large-scale travelling merchants which from other provinces and immigrant and the Hakka entered into the towns and villages which spreads along the river basin of Guijiang.
明清以来，随着岭南开发进程的加速，大规模的外省客商、移民、客家人进入桂江流域两岸的圩镇和村落。
Then, the thinking and method of ascertaining road network scale reasonably are bringed forward from travelling general mileage. equivalent general mileage and grade optimization of road network.
之后，论文从公路网通车总里程、当量总里程、以及路网等级结构优化三个方面入手，提出合理确定公路网发展规模的思路与方法。