详细解释:【医】 加拿大香脂, 加拿大松脂
英语解释：
名词 canada balsam:
yellow transparent exudate of the balsam fir; used as a transparent cement in optical devices (especially in microscopy) and as a mounting mediummedium-sized fir of northeastern North America; leaves smell of balsam when crushed; much used for pulpwood and Christmas trees同义词：balsam fir, balm of Gilead, Abies balsamea