What is nothing in the wood terminology?
Wood "knots", including the festival and the dead section, the knuckles and knots around the normal structure of the separation of wood, the festival is the knots and the surrounding texture of the wood structure, no stripping, folder skin, plaque. There is no "no material" in wood, but it can generally be understood as a sheet with no dead ends and less than 1 cm in diameter. By the way, I have seen 4 meters long 60cm wide red pine, a festival no, a vortex does not have, very straight texture, per cm12 bars. It is artwork.
The term "wood" refers to the branches that exist inside the trunk of the tree and its surface. Understand this point we can see that the so-called no-material, that is, no knots of wood. In fact, all the trees can not not long branches (palm and coconut trees and the like exception), but the branches are large, small, more, less, significant, hidden distinction Bale, so the real sense of no material is no of. In reality, any small or relatively subtle child (such as the hidden section, a few millimeters) can be ignored as no material.
In general, the large trees from the ground to see the first branch of the trunk at that time, known as no material; also saw into a sheet or square material, the material is very small or no material, Said no material.
