在中午时，河工们开始在岸边吃午饭。

At noon the men came to shore for lunch.

通过河工模型试验，应研究出技术可行、经济合理的整治方案。

Through the river model experiment , the tech-economic reasonable river improvement measures are studied.

结合嘉兴市排海工程，通过河工模型试验，对减少扩散器泥沙淤积的措施进行了研究。

Related to the sea outfall project of Jiaxing City, the studies on the measures to reduce the sediment deposition in the diffuser are carried out through hydraulic model tests.

通过河工动床模型试验，对沿治导线布设形式的透水桩坝在黄河下游控导河势的效果进行了研究。

The effects of permeable pile groynes laid out along the thalweg in control and guide the regime of the lower Yellow River have been studied through movable bed model tests.