Cut a 70-degree notch into the tree with a length of 80 percent of the trunk’s diameter.
在树根处砍一个缺口，缺口的深度应该是树木直径的80%，其角度大约为70度。
2
Cut the yarn approx. 1 "longer than the diameter of your circle backer."
将毛线剪为比圆直径约长1英寸的线段。
3
Only a few centimeters in diameter and invisible to the naked eye, the Avenger's laser is 20 times hotter than an electric stove top and will cut through artillery shells with ease.