清淤

dōng tiān shì hé dǐ qīng yū de hǎo shí jiān

冬天是河底清淤的好时间。

Winter is a good time to desilt the river.

rú bù fú hé yāo qiú jiān lǐ fāng kě yāo qiú lì jí tíng zhǐ qīng yū

如不符合要求，监理方可要求立即停止清淤。

In case of non-compliance the engineer can require immediate dredging stop.

yī zhǒng xīn de qīng yū shū ní shè bèi

一种新的清淤输泥设备

a new type of dredging and mud flow conveying system