河段

In the experiment,the water quality of Panlongjiang River was monitored by using Tradescantia.

用紫露草雄蕊毛突变技术对盘龙江松花坝至滇池河段的水质进行监测。

This monitoring experiment of the water quality of the Panlongjiang River was conducted by using the Tradescantia MCN test.

用紫露草雄蕊毛突变技术对盘龙江松花坝至滇池河段的水质进行监测。

The researcher points out the analytic methods and steps then uses the two-dimensional hydrodynamic model to analyze the simulation of watercourse. There are three two-dimensional hydrodynamic models (inclusive of the RMA2 model, HIVEL2D model and FESWMS model) which are included identical range and limitation in our graduate school. The researcher chose the two-dimensional hydrodynamic model as the proper tool which can be used to simulate the flowof the old street stream. Researcher will transvaluation the retaining ability of the watercourse and consider the practice requirements to make the proper govern suggestion, furthermore, the results can be used as the reference of relative principles.

本研究旨在提出分析方法与步骤，使用二维水理模式作一河道模拟分析，由於本研究所介绍三个二维水理模式（包含RMA2模式、HIVEL2D模式、FESWMS模式）均有其适用之范围以及限制之条件，故本研究选定一适合模拟老街溪之二维水理模式作为水理分析之工具，藉由分析之结果，重新评估该河段之防洪排洪能力，并就实际整体防洪需求做妥善的治理建议，使研究成果能提供相关对策之参考。

In this paper divided the river network into two types: treelike network and annular network,and use time sequence observations on few observation points as the inversion of information, verified use of genetic algorithm inverse of the entire river networks roughness is feasible.

本文将河网分为环状和树状两种不同复杂的情况，把河网中部分观测点的时序列数据作为反演资料，验证了利用遗传算法反演整个河网中所有河段的糙率是可行的。

The tidal river discharge observing system of this thesis gives a new method and experience of the hydrology observing to the river reach and cross section with complicated landform and flow, or busy shipping. This system has achieved 3 innovations: instruments for measurements which use the unmechanized rotor and continue measuring ADCP as the velocity mainframe; methods of velocity measurement which change the vertical velocity measurement to horizontal velocity measurement; the tidal discharge measurement which solve the problem that current method of discharge measurement can not achieve the accuracy of the criterion according to the continuous real time observing over the velocity of flow.

本论文研究的感潮河流流量监测系统，具有测验设备的创新，用可连续测验的非机械转子式的声学多普勒流速剖面仪为测速主机；流速测验方式的创新，改变以往测取垂向流速为水平流速的方式；潮流量测验方式的创新，对流速进行连续实时的监测，解决了用现行测流方法达不到规范要求精度的问题；为地形、水流复杂或是航运频繁的测验河段和断面，提供水文监测的新方法、方式和经验。

The mountain catfish Amphilius uranoscopus preferred shallow habitat(50 cm) with coarse substrate and moderate flow(0.4-1 m/s).

瞻星平鳍鲇通常喜欢生活在水深小于50 cm、流速0.4-1 m/s的缓流河段，这里水色较深，河底多卵石。

Three sampling sites were set along the river,the classification and distribution characteristic of the phytoplankton,zooplankton and zoobenthos were sampled and investigated in Mar,2005,respectively.

本文于2005年3月针对武江乐昌河段布设了三个监测断面，分别取样调查了浮游植物、浮游动物、底栖动物的种类和分布特性。

Firstly, the flood control regulation of TGP in Sep is computed based on the analyses on the inflow in Sep and Oct, and the risk and loss on the ahead impounding scheme is calculated and analyzed. Then, the storage level, power production and releasing discharge are achieved by computing on the electricity generation model through reservoir regulation graph. Thirdly, obstruction in channel is analyzed and the problem in the Chongqing reach is more serious in 175-145-155m scheme. The sediment aggrading process and distribution on different schemes is calculated by 1-D reservoir mathematical model. The navigation benefit is computed by navigation model. Based on above calculations, the impounding time is decided by the multi-purpose decision model, and evaluate by analytical hierarchy and balance layout model. A best impounding scheme is achieved to match the requirement of flood control electricity generation and navigation et al.

首先，在对宜昌站9、10月份来水分析的基础上，采用第2章建立的防洪优化调度子模型进行了三峡水库9月份防洪调度，分析了汛末提前不同天蓄水对防洪的影响，计算了汛末不同蓄水方案水库9月份的洪灾风险率和风险损失；接着，根据第2章建立的发电调度子模型进行了三峡水库发电调度计算，得出了不同蓄水方案下水库的坝前水位、发电量及下泄流量过程；然后，分析了175-145-155m方案下三峡水库的碍航问题，指出175-145-155m方案下重庆河段的碍航问题最为严重，通过进行不同蓄水方案下水库一维泥沙冲淤计算，得出了不同蓄水方案下库区淤积过程及分布，并通过航运调度子模型，计算了不同蓄水方案下水库的航运效益；最后，根据以上防洪、发电及航运调度计算的结果，运用第3章水沙多目标决策模型对水库的蓄水时间进行了多目标决策，并采用层次加权均衡规划模型对计算结果进行评价，得到一个能满足水库防洪、发电及航运各方面要求的最佳蓄水方案。

You're falling out of reach, Defying gravity I know you're out there, Somewhere out there.

你闹翻河段，不畏重力我知道你在那里，某处有问题。

Based on a quantity of the field measured data of gravel , the trimming andanalysis were carried out and directed against the Chuanjiang and its distributaries of theUpper Yantze River as well as the Three Gorges Reach.

在收集大量卵石野外实测资料的基础上，主要针对长江上游的川江及其支流和三峡河段进行整理与分析，得到了卵石河床的床面组成、卵石推移质级配、卵石形态特征及其输沙率的变化规律

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。