Macpherson J W, Penner P
Can J Comp Med Vet Sci. 1967 Nov;31(11):275-6.
Five young seals and three mature seals were branded using liquid nitrogen cooled branding tools with xylol as a wetting agent. Preliminary results are encouraging as presented by photographic evidence.
使用以二甲苯作为湿润剂的液氮冷却烙印工具,对5只幼年海豹和3只成年海豹进行了烙印标记。如照片证据所示,初步结果令人鼓舞。