The depth of the river is maintained by dredging.
通过疏浚保持河道的深度。
He says she never spotted a "river pig" in her childhood, but did witness the increasing dredging of the river to feed the construction sites on its Banks, and the resulting muddying of its waters.
他说她在童年时从未看到过“江猪”，但却见证了人们不断地挖掘河泥供应给岸上的建筑工地，由此污浊了河水。
To restore coastal habitat, for example, the report advises using strategic dredging and river diversions to rebuild the rapidly disappearing wetlands of the Mississippi Delta.
例如，为了恢复海岸栖息地，报告中建议使用有效的疏浚和引流以重建快速消失的密西西比河三角洲的湿地。
The planning involves improvements to fish landing centers, drying platforms and auction centers, as well as the dredging of river mouths to remove the silt deposited by the waves.
有关计划包括改善水产登陆中心、晾晒场地和拍卖中心，以及疏浚河口以清除海浪冲来的淤泥。
Earth-moving trucks are dredging the narrow, sewage-filled river, and garbage trucks pass through three times a week.
运土的卡车正在疏浚狭窄被脏水填满的河，垃圾车一周来三次。
But last month Nicaragua went further: a group of Nicaraguans dredging the river set up camp on the Costa Rican side, backed by about 50 soldiers.
但上个月尼加拉瓜方面升级了：一群尼加拉瓜人在50个士兵的支持下，在哥斯达黎加一方的岸边建立了营地。
Dredging will continue over the next few years, after which the river should be PCB-free.
疏浚将在接下来数年中持续，直至这条河中没有PC B物质。
Nicaragua sent the soldiers there last year when it began dredging a channel around the island in the San Juan river, which marks the border between the two countries.
去年尼加拉瓜开始派士兵岛这个岛屿附近的圣胡安河上挖通道，圣胡安河是两国的界河。
To solve related dredging problems and to analyze the effectiveness of jet flow scouring for the Tongguan stretch of the Yellow River, jet flow scouring experiments were made in laboratory flumes.
为解决黄河潼关河段射流清淤工程有关技术问题，分析其冲沙效果，利用室内水槽进行了静水、动水条件下射流冲刷试验。
The dredging silt of Dagu River is disposed of the building waste materials and slag. The article studies its feasibility of the roadbed stuffing to realize the resourcization and decontamination.
采用建筑废料及炉渣等材料对大沽河疏浚淤泥进行处置，研究其作为路基填料的可行性，实现疏浚淤泥的资源化和无害化处理。
Besides the extension length of sedimentation, the factors that effected the river course are channel pattern, process of water and sediment and dredging.
影响河口河道好坏的因素，除淤积延伸长度外，还应包括河槽形态、水沙过程、河口疏浚等。
For improving future navigation conditions regulation measures such as reservoir operation scheme, river training works and dredging are discussed.
对各种治理措施，诸如水库调度、河床整治及疏浚，也进行了讨论。
For dredging works, only mechanical dredgers with bucket-type closed-grabs shall be used for the dredging of river bed or ponds.
进行挖泥工程时，只可使用密封抓斗式的机械挖泥机，以挖掘河床或塘底的淤泥。
Based on the new phenomena of the shrinkage of river channels in North China, analyses of the basic principles and some key problems for dredging under shrinking conditions are presented.
本文结合近些年来我国北方河流出现的河床枯萎现象，分析了枯萎疏浚的基本原理及几个关键技术问题，对于目前在黄河等枯萎河道上采用疏浚防洪有一定的参考价值。
With the dredging projects in the Lower Yellow River, the environmental background values of the dredging silt have been determined by means of on site sampling and measurement.
结合黄河下游疏浚工程，通过现场取样和化验，确定了疏浚底泥的环境背景值。
Because of the complexity in underwater soil, river bed condition and dredging process of a real dredging project, dredging conditions are very often unsteady.
在实际的疏浚作业过程中，由于水下土质、河床形态和作业过程的复杂性，严格地讲，疏浚工况是非恒定的。
Thereafter, dredging the Huai River really became one national undertaking and one offer systematic cause of planning.
从此以后，导淮事业真正成为了一项国家事业和一项给予系统规划的事业。
In calculation models of cutting volume for dredging project, the cross section is usually a special one through survey points, and the curve of the river bed is assumed to be a line or a polyline.
通常疏浚工程中挖槽土方量计算模型的河床横断面是通过测量点的特殊断面，该断面轮廓曲线假定为近似直线或折线。
To guarantee the safety of ships plying the river, dredging work was expected to ramp up, and more rescue vehicles may be put into operation this year.
为保证船舶运行的安全，疏浚工作将进一步加强，今年更多的救援船只将投入使用。
In addition, dredging can make some benefit for the river regime, but additional regulation projects may be needed.
另外，挖河可以在一定时段内起到理顺河势的效果，但要维持其效果，还应有一定的河道整治工程相配套。
The agitating and dredging process and its effect in the down stream of Yellow River during the third experiment of regulating water and sediment have been summed up in this paper.
概述了黄河第三次调水调沙试验下游泥沙扰动调度实施过程及扰沙效果。
The dredging of the Huai River was the most industrious work of Zhang Jian, known as one of the two "masters in Chinese modern history of water conservancy" .
张謇被称为“中国近代两位水利导师”之一，淮河的治导是张謇费心力最多的水利问题。
The dredging of the Huai River was the most industrious work of Zhang Jian, known as one of the two "masters in Chinese modern history of water conservancy" .
张謇被称为“中国近代两位水利导师”之一，淮河的治导是张謇费心力最多的水利问题。
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