The large excavators had an astonishing weight, and all they carried out were heavy work. With their engines emphasizing on twisting force and horsepower being ignored, it was just natural that the speed was not too fast. Although a unique 'sand chain' was installed, the maximum speed they could travel on the desert was only 30 kilometers per hour.
It took four to five hours to complete the 150-kilometer journey. Although the driving cabin was air-conditioned, it was inevitable for the drivers to be drenched with sweats and felt dizzy. By the time the excavator drivers arrived at the experimental oasis, the drivers were already not in a good mood. Even though there was the temptation of a high salary, they only brushed it off disorderly by responding, "Don't worry, boss. Of course, we'll work hard since we're paid anyway…"
"I've been driving the excavator for more than ten years, and I have done all kinds of projects. There has never been any problem before…"
