We can introduce the special machines for such dredgework.
本文介绍一种专用的管道疏通设备。
2
Through operating practice, ways of resolving the problems resulted from dredgework at contemporary river bed and beach are put forward. The condition of each way opted is also discussed.
通过生产实践，对采金船在现代河床、河漫滩开采所引起的安全问题，提出了解决方法和各种方法的适用条件。
3
It will dredge the channel that cadre takes off, work out a mechanism of cadre eliminated by perfecting check, settling reasonably, ensuring policy and establishing correlative policy.