Scratch this kind of secretion from tree, unfreeze it by warm water, refine out wax, melt it again and filtrate and bleach if necessary.
Scratch this kind of secretion from tree, unfreeze it by warm water, refine out wax, melt it again and filtrate and bleach if necessary.
将这种分泌物从树上刮下来后，用热水溶化，撇出蜡，再熔化后并过滤以进行精制，必要时再进行漂白。