Then start the desander and desilter.

然后启动除器和除器。

When drill hole in sandy soil the desander should be timely turned on to reduce the sand content and ensure the drilling progressing and stability of the hole.

在土层中钻进时，要及时开启浆分离器，降低含率，保证钻进速度和孔壁的稳定。

Then start the desander and desilter.

然后启动和。

When drill hole in sandy soil the desander should be timely turned on to reduce the sand content and ensure the drilling progressing and stability of the hole.

在土层中钻进时，要及时开启浆离，降低含率，保证钻进速度和孔壁的稳定。

Then start the desander and desilter.

然后动除器除器。

When drill hole in sandy soil the desander should be timely turned on to reduce the sand content and ensure the drilling progressing and stability of the hole.

在土层中钻进时，要及时开分离器，降低含率，保证钻进速壁的稳定。

Then start the desander and desilter.

然后启动除器和除泥器。

When drill hole in sandy soil the desander should be timely turned on to reduce the sand content and ensure the drilling progressing and stability of the hole.

在土层中钻进时，要及时开启泥浆离器，降低含率，保证钻进速度和孔壁的稳定。

Then start the desander and desilter.

然后启动除和除泥。

When drill hole in sandy soil the desander should be timely turned on to reduce the sand content and ensure the drilling progressing and stability of the hole.

在土层中钻进时，要及时开启泥浆离，降低含率，保证钻进速度和孔壁的稳定。

Then start the desander and desilter.

然后启动泥。

When drill hole in sandy soil the desander should be timely turned on to reduce the sand content and ensure the drilling progressing and stability of the hole.

在土层中钻进时，要及时开启泥浆分离，降低含率，保证钻进速度孔壁的稳定。

Then start the desander and desilter.

然后启动除器和除泥器。

When drill hole in sandy soil the desander should be timely turned on to reduce the sand content and ensure the drilling progressing and stability of the hole.

在土层中钻进，要启泥浆分离器，降低含率，保证钻进速度和孔定。

Then start the desander and desilter.

然后启动除器和除泥器。

When drill hole in sandy soil the desander should be timely turned on to reduce the sand content and ensure the drilling progressing and stability of the hole.

在土层时，要及时开启泥浆分离器，降低含率，保证速度和孔壁的稳定。

Then start the desander and desilter.

然后启动除器和除泥器。

When drill hole in sandy soil the desander should be timely turned on to reduce the sand content and ensure the drilling progressing and stability of the hole.

在土层中，要及开启泥浆分离器，降低含率，保证速度和孔壁的稳定。

Then start the desander and desilter.

然后启动除器和除泥器。

When drill hole in sandy soil the desander should be timely turned on to reduce the sand content and ensure the drilling progressing and stability of the hole.

在土层中钻时，要及时开启泥器，降低含率，保证钻和孔壁的稳定。