| 1. | The suspended sediment of natural streams is usually made up of grains with a broad spectrum of sizes and fall velocities .
天然河流的悬沙，通常系由各种大小尺寸和沉速的粒子组成。 |
| 2. | Based on the cross - sectional velocity distribution of flow in natural river , computation expression for correction coefficient of kinetic energy is derived
然后根据天然河流横断面流速分布公式，推导了能量方程中动能修正系数的计算公式。 |
| 3. | Whether it has conducted surveys on the natural rivers and streams in hong kong so as to establish a databank on their locations , ecosystems and water flows ; if so , of the situation as reflected by the present data ; and
有没有调查全港天然河流和溪涧，以建立纪录它们的位置、生态环境及流量等情况的资料库；若有，现有资料所反映的有关情况是甚么；及 |
| 4. | Of the existing policies on the conservation of natural rivers and streams in hong kong , as well as a breakdown of the laws concerned ; the government departments responsible for enforcing the relevant laws ; and the enforcement measures taken by them
保育本港天然河流和溪涧的现行政策，以及分项列出有关的保育法例、负责执行的政府部门，以及它们采取的执行措施； |
| 5. | The afcd started a territory - wide ecological baseline study in 2002 , which covers mangroves , woodlands , freshwater wetlands , natural rivers and other important habitats . so far , over 200 rivers and streams have been surveyed
渔护署于二二年开始进行一项全港性的生态基线调查，调查涵盖红树林、树林、淡水湿地、天然河流等重要生境，至今已调查了超过二百条河溪。 |
| 6. | He has published such thesis as application of monte carlo method for calculating lock base filtration ， numerical simulation of three - dimensional turbulent flow in forebay of pumping station ， the classification of braided reach by fuzzy clustering , etc
发表了《用蒙特卡罗方法求解船闸地基渗流》 、 《泵站前池流态的数值模拟》 、 《天然河流分汊河段河型模糊聚类分析》等研究型论文。 |
| 7. | Verification results of more than 2800 runs of channel experiment data and field data show that this formula has good applicability and high accuracy , and is better than the other formulae for bedload sediment transport rate based on the stream power
经2800组试验资料与天然河流资料的检验表明，该关系式的适应性良好，计算精度较高，并优于同类型的基于水流功率的推移质输沙率公式。 |
| 8. | Length of navigable inland waterways ： refers to the length of the natural rivers , lakes , reservoirs , canals , and ditches open to navigation during a given period , which enables the transport by ships and rafts
内河航道里程：也称“内河通航里程” ，是反映内河水运网规模、水平和发展情况的主要指标；是指在一定时期内，能通航运输船舶及排筏的天然河流、湖泊水库、运河及通航渠道的长度。 |
| 9. | Therefore , the ecological function of rivers to the construction of urban ecology is summarized in this article based on the research before ; and then the effects of urbanization on natural rivers are discussed taking nanjing as an example , also the ecological ways of urban river construction in nanjing city are pointed out
为此，本文首先分析了城市河流的生态功能，然后以南京市为例，论述了城市化对天然河流的影响，探讨了城市河流的生态化建设途径。 |
