excavator

The excavators have dredged up nothing but mud.

只出了一些泥。

Give priority to develop and manufacture full-face excavator, large-tonnage hydraulic excavator, heavy-tonnage loader, autocrane series, medium and small tonnage and multifunctional loaders.

重点开生产全断面进机、大型液压机、大吨位轮机、系列汽车起重机以及静液压中小吨位和多功能机。

The article recommends the technique arguments of the wafery excavator and the technics of building antiseep concrete wall using by it.

摘要介绍了薄型抓斗的技术参数及薄型抓斗建造混凝土防渗墙的主要施工工艺。