7. Sheet bend or weaver's knot--for joining two ends.
8. Square or reef knot--for joining two cords--very useful,
is non-slipping.
9. Granny knot--most people confuse it with the square
knot. It will slip.
Educational Toys Consisting Chiefly of Coping-Saw Problems for Children in School and the Home · 第 102 / 127 题