查询词典 sediment-covered

Toxicity of contaminated harbour sediment to grey mullet, Liza macrolepis .

高屏溪口的鱼类组成及季节性群聚变动。

Toxicity of contaminated harbour sediment to grey mullet, Liza macrolepis .

陈孟仙 (1999)。七股潟湖中底泥和鱼类之金属浓度及污染指标鱼类的建立。

The study on the polarized spectral character is an important basis job of detectingsuspended sediments by polarization remote sensing. First, many research jobs on thissubject are introduced. Then the correlative theories of polarization and water-color remotesensing are addressed, including spectrum character, absorption and scattering coefficient ofpure water, as well as spectrum feature of suspended sediment.

在对国内外有关利用卫星遥感提取悬浮泥沙方法和多角度偏振技术作了介绍的基础上，文中先介绍了偏振光遥感的有关知识和利用传统遥感方法提取悬浮泥沙信息的理论基础包括纯水的光谱特性、吸收和散射系数，及悬浮水体的光谱特征等。

Based on systematic analysis of various desilting methods by using existing reservoirs, the paper puts forward an overall thinking of desilting system of auto-suction pipe of the Xiaolangdi Reservoir, i.e. to automatically discharge the deposited fine sands within about 40 km area in foreside of the dam through dam tunnel or tunnel on the right bank of mountain by placing a removable and lengthable pipe equipped with a suction head in the near dam section of the reservoir area.It can discharge 300 million tons sediment each year by preliminary estimation.

在系统分析已建水库各种排沙方式的基础上，提出了小浪底水库自吸式管道排沙系统总体思路，即利用水库自然水头，在近坝段库区内铺设可移动并带有吸泥头、可逐渐加长的管道，自动地将坝前约40 km范围内淤积的细颗粒泥沙和通过过坝隧洞或右岸山体内的隧洞排出库外，初步估算每年可排出泥沙3亿t。

The sediment sandstone layers of meandering stream are thin and varied laterally. And those of braided transport quickly and aggraded vertically. They increase hardness against improving the prospecting resolution.

由于曲流河相沉积砂体的单层薄、横向变化；辫状河相沉积的砂体迁移快、垂向加积等特点，增加了在勘探过程中对其分辨的难度。

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。

The ventilation and air-conditions system of building supplies comfortable environment for work and life, however, because of the existence of sediment in ventilation tubes, the air-conditions system can become an importance approach of fire spread and diffusion in buildings.

建筑物的通风空调系统给人们的工作和生活创造了舒适的环境条件，但由于空调系统的管道中聚积物的存在，空调系统将成为火灾在建筑物内蔓延传播的重要途径。

The average number of Bacillus sp., ammonifying bacteria and presumptive sulphur oxidizing bacteria in treated ponds sediment was also generally higher(P.05) than that of the control ponds.

而养殖末期弧菌的数量却明显低于对照组(P.05)。

Ammonifying rate, nitrosifying rate,nitrifying rate and denitrifying rate were determined by measurement of conversion efficiency and accumulating rate of nitrogenous matter by ammonifying bacteria, nitrobacteria, nitrifying bacteria and denitrifying bacteria in the surface 0-1.5 cm of pond sediment from the intensive fish culture ponds.

通过对精养鱼池表层淤泥中氨化细菌、亚硝化细菌、硝化细菌和反硝化细菌对含氮物质转化率的测定，定量了解了上述细菌的氨化率、亚硝化率、硝化率和反硝化率。

The population distribution of physiological groups of bacteria,including ammonifying bacteria, denitrifying bacteria, nitrobacteria and nitroso bacteria, organic phosphate dissolving bacteria and inorganic phosphate dissolving bacteria in water body and sediment of Suzhou Creek are studied with MPN and flat account method from Jan. 2002 to Mar. 2003. The role of these physiological groups of bacteria in Suzhou Creek aquatic ecosystem is discussed.

用最大可能数法和平板计数法，于2002年1月～2003年3月对苏州河水体和底泥中的主要微生物功能菌群——包括有机磷分解菌、无机磷分解菌、氨化菌、亚硝化菌、硝化菌和反硝化菌等进行了生态调查，并分析探讨了它们在苏州河水生态系统中的作用。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。