(1) a large scale object refers to one of the following standards:

Length greater than 14 meters (including 14 meters) less than 20 meters;

Width greater than 3.5 meters (including 3.5 meters) less than 4.5 meters;

Height greater than 3 meters (including 3 meters) less than 3.8 meters;

Weight greater than 20 tons (including 20 tons) less than 100 tons.

(2) a large scale of class two refers to one of the following standards:

Length greater than 20 meters (including 20 meters) less than 30 meters;

Width greater than 4.5 meters (including 4.5 meters) less than 5.5 meters;

Height greater than 3.8 meters (including 3.8 meters) less than 4.4 meters;

Weight greater than 100 tons (including 100 tons) less than 200 tons.

(3) a large scale of class three refers to one of the following standards:

Length greater than 30 meters (including 30 meters) less than 40 meters;

Width greater than 5.5 meters (including 5.5 meters) less than 6 meters;

Height greater than 4.4 meters (including 4.4 meters) less than 5 meters;

Weight greater than 200 tons (including 200 tons) less than 300 tons.

(4) a large scale of class four refers to one of the following standards:

Length of 40 meters and above;

Width of 6 meters and above;

Height of 5 meters and above;

Weight of 300 tons and above.

The level of large objects, according to their length, width, height and weight of the four conditions of the highest level of determination.