Check the Internet, there is no detailed description of this is very vague, so consult the great God of Baidu who knows, give an answer, if this is the difference between the two, which makes more money, is for others to open, buddy is Anshan
Commonly known as hook machine, excavator digging machine etc.. The small arm joint of the excavator can also be replaced with a furrow opener. As you say, it should be a concept. Excavators are large, small, large excavators, higher wages, mainly to look at the technology.I hope it will help you.
According to the principle of internal combustion and power, thin in the air, mine generally use the latter. Some other special kinds of shovel, such as grab, drag shovel, mountain shovel, etc., have pictures on the Internet, or suggest you open the backhoe, the work is easy to find, and open well, then there are people who hire you. Wish you success!
Excavator is a type of general term, one of which is called "grab bucket machine", also known as backhoe, as well as positive shovel. This is according to the mode of operation.