Abstract］ objective to study the chronic subdural haematoma pathological mechanism characteristic, curing method and factor failing. methods the method carries on a clinical research to 217 sufferers and the whole set goes skull ct to scan. for the very first time surgical operation method all for drill a hole to lead to drainage. results cured 193 cases (88.94%), haematoma residual 9 cases (4.15%), haematoma recrudesces 15 cases (6.91%).conclusion procedure selection should be based on condition of the patients with hematoma, drainage completely and anti-pneumo encephalos may important.
摘要］ 目的探讨分析慢性硬膜下血肿的病理特点、治疗方法和失败因素。方法对217例患者进行临床研究，全组均行头颅ct扫描。首次手术方式均为钻孔引流术。结果恢复良好者193例（88.94%），血肿残留9例(4.15%)，血肿复发15例(6.91%)。结论对慢性硬膜下血肿的治疗应根据病情选择手术方式，术中血肿冲洗要彻底及术中术后要预防气颅的发生，可降低术后血肿复发率。
Lijiang River is 214 km in length, and 5585 km 2 in drainage area Water resources of Lijiang river basin totals 6623×108m 3, which is characteristic of mountain stream Its available amount, actual water supply, and actual utilization are 2649×10+8, 1544×10+8, and 1360×10+8m+3, respectively.
漓江全长 2 14 km ，流域面积 5 5 85 km2 ，漓江流域降水资源丰富，水资源总量为 6 6 。2 3× 10 8m3，水资源具有山地河流的特点，水资源可利用量为 2 6 。4 9× 10 8m3，现状供水总量为 15 。4 4× 10 8m3，现状用水总量为 13.6 0×10 8m3，供用水基本达到平衡。
This text introduces the classification and structure, project characteristic and mechanics characteristic of soft soil and the danger and handling of the soft soil subgrade. The paper narrates the principle of the plastic drain board method to deal with soft soil subgrade. It increases soil layer the way to drain off water, shortens the distance of drain off water, produces additional stress at load function, makes moisture through insert water drainage board in soil layer discharge, accelerates the consolidation and settlement of the ground, bears the weight of strength, guarantees the purpose with steady road bed in order to achieve and improve the ground.
本文介绍了软土的分类和结构，软土的工程特性和力学特性，软土地基的危害及其处理的方法；塑料板排水法处理软土地基的原理，当软土层中打设塑料排水板时，增加土层排水途径，缩短排水距离，在上部荷载作用下产生附加应力，使土颗粒间的水分通过插在土层中的排水板排出地层外，加速地基的固结与沉降，以达到提高地基承载力、保证地基稳定的目的；塑料排水板的性能、分类和适用范围以及塑料板排水法处理软土地基施工工艺。
To evaluate the properties of alum and PAC used as aids of sizing, drainage and retention, it is necessary to study the charge characteristic of the stock added alum and PAC.
添加硫酸铝和聚合氯化铝的纸浆的电荷特征，是决定铝化物发挥功效的重要因素。
The outcome shows that: the distribution of groundwater hydrochemical characteristic bears a character of horizontal zonality, the chemical type of groundwater changes from bicarbonate in recharge area to sulphate and halide in drainage area, TDS of groundwater grows up from south to north in this plain.
结果表明：清水河平原地下水水化学类型具有明显的水平分带性，地下水化学类型由补给区的重碳酸盐型水向排泄区的硫酸盐氯化物型水转变，地下水矿化度自南而北逐渐增高。
On the basis of water resource and hydrology, water supply-drainage theory, water policy management, systems analysis and decision theory, environment protection theory, this paper studies the structure, characteristic, property, movement law of water affairs system, summarizes movement law of water affairs system, factor influenced, development direction, and the basis, principle, content, path and objective for management of water affairs system.
同样以水权市场化管理为指导思想，在分析现行水环境状况和管理、治理思路基础上，结合水环境保护、水功能区划、水体纳污能力评价，研究了排污权与排污权市场化管理，分析了排污权管理的动因，排污收费、排污许可证与排污权的关系，初始排污权配置原则、方法、排污权价格构成、定价指导思想、配置方法，以及市场交易、激励功能、帕累托改进等问题。
Foundation treatment, water proof measures, design principle and characteristic of feed water and drainage pipeline in collapsible loess area were introduced.
由于湿陷性黄土的特性，湿陷性黄土地区给水排水管道设计越来越引起人们的关注。
The proper treatment measures, including drainage, unload, improvement of the earth and retaining project, should be taken according to the characteristic of the land-slide.
滑坡的处理应根据滑坡的不同特点采用相应的处理方法，常用的措施有排水处理、减载与反压、土体改良法、支挡结构抗滑等方法。
The influence of structure, viscosity, consolidation pressure, drainage condition and stress path, on the mechanic and deformation characteristic of structured soil is studied.
着重探讨了结构性和粘滞性、固结压力和排水条件以及应力路径等对结构性土变形特性和力学特性的影响，并结合重塑土作了平行对比试验研究。
Characteristic Analysis on Rainstorm Flood of 2007 in the Huaihe River Drainage Area in Anhui
淮河流域安徽省2007年的暴雨洪水特性分析
By means of analyses of mining-induced fractures distributing characteristic and migration law of gas in overburden fractures, the author brings forward the principle of arranging gas drainage bore in adjacent seams and goaf.
通过对覆岩采动裂隙的分布特征及覆岩裂隙带内瓦斯运移规律的分析，提出了邻近层及采空区瓦斯抽放的布孔原则。
Located in the north of China, Zhangwei south canal drainage area belongs to typical mainland monsoon climate, the rainfall displays an uneven characteristic, mainly focus on summer.
漳卫南运河流域地处华北，属于典型的大陆季风性气候，降雨时空分布不均，降雨主要集中在夏季。
Aiming at the easy development on the debris flow of the mostly valley, we can obtain the shape characteristic parameter of valley through the field investigation (valley elevation difference, lengthwise grade slope, ditch length, drainage area and so on).
对容易发生泥石流灾害的主要沟谷，通过现场调查可以获取沟谷的形态特征参数（沟谷的高差、纵坡的坡度、沟长、流域面积等）。
Terrian features are very important in drainage basin analysis, hydrological analysis and the progress of mineral exploration and evaluation. The spatial distribution characteristic of terrain attributes is an important indicator which used to describe space process changes.
地形因素是影响流域地貌、水文、矿产勘查与评价等过程的重要因子，地形属性的空间分布特征是人们用于描述这些空间过程变化的重要指标。
The drainage system is self-formed by flow on certain geology, terrain and climate conditions, with obvious characteristic of self organization.
河流水系的形成是在一定地质、地形、气候等条件下，水流自由发展的结果，具有自组织临界性。
This study put forward that Karst drainage structure comprised of drainage shape structure and drainage medium structure, deliberate the relationship between drainage physiognomy and drainage lithology. The relationship between drainage space scale、physiognomy、lithology etc factors and low flow in Karst drainage was revealed by Statistics、Theory of grey system and ANN technique. Two-component log-normal distribution adapts to frequency of low flow in Karst drainage and physiognomy is not work on it in study. A new means that forecast low flow in regions without data was brought forward by linking RS technique and Statistics ground on the spectrum characteristic of surface water in Karst drainage, and gained good effect by curtailed inspection.
研究提出了喀斯特流域结构类型可分为流域形态结构和流域介质结构；探讨了流域地貌与流域岩性之间的关系；采用现代多元统计、灰色系统理论和神经网络技术揭示了流域空间尺度、地貌类型、岩性差异等因素与喀斯特枯水径流之间的定量关系；研究指出适合喀斯特流域枯水径流频率分析的曲线线型为对数正态分布且地貌类型对该线型影响不大；根据流域下垫面物质赋水的光谱特性，将现代 RS 技术与多元统计方法相结合提出在无资料地区进行枯水径流预测的新方法，并通过样区检验得到了很好的预测效果。