“鸭嘴”嵌单楔形拿弯法,是在树干备刀法拿弯处两侧对位切成两个皮瓣,形似鸭嘴,其树干中部,连树皮带木质便成为近似一个楔形,楔刃正对准“鸭嘴”的“喉部”。一、适应范围此法适应的枝干粗度,界于“皮舌”拿弯法(之二)向“多楔形瓣”拿弯法(之四)过渡的拿弯刀 “Duckbill” embedded in a single wedge Naipan method, is cut in the trunk cut knife on both sides of the knife on both sides of the alignment cut into two flaps, the shape of duckbill, the middle of the trunk, and even the bark of wood becomes almost a wedge, wedge The blade is pointing at the “throat” of the “duckbill.” First, the scope of adaptation This method to adapt to the thick branches, the community in the “tongue” take the bend method (two) to the “multi-wedge valve” take the bend method (four)