To view the tree density is found in the economy to create a 4 lane road with measuring circumference and measure the height of the tree has a gun he had a lot of fun, and the various species of wood ด้รู้จัก.
To see the density of the trees in the wood in order to make the economy 4-lane road is built to measure circumference and measure the height of the trees is very fun and the gun he knew ดด้ plants.