The effects of cemented layer on the evaluation of geological reserves and dredging operation were analysed and the suggestion for its disposal was put forward by the author.
它对评价地质储量和采金船生产所造成的影响，探讨处理胶结层的途径，并提出建议。
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。
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。
The dredging device has the characteristics of safe and convenient operation, no complication and long time use for the patient.
本疏通器具有使用安全、方便，不发生并发症，患者可长期使用的特点。
The dredging of the water sump in the underground mine is always done with the primitive manual operation for many years which would seriously influence and restrain the mine safety and production.
煤矿井下水仓清淤多年来一直采用原始的人工作业方式来完成，严重影响和制约着矿井的安全与生产。
The dredging of the water sump in the underground mine is always done with the primitive manual operation for many years which would seriously influence and restrain the mine safety and production.
煤矿井下水仓清淤多年来一直采用原始的人工作业方式来完成，严重影响和制约着矿井的安全与生产。
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