单词Canada balsam
网络: 加拿大香脂；加拿大树胶；加拿大胶
Canada balsam A yellowish resin with similar optical properties to glass, used as a mounting medium for microscope slides.
一种黄色的树脂，和玻璃具有相似的光学特性，被用来作为显微镜载玻片的覆盖介质。
The two pieces being cemented together with a thin film of Canada balsam .
再将这两块晶体用一层加拿大树胶薄膜粘合在一起。
Canada balsam was substituted by water-soluble acacia, which made the making process more secure.
采用水溶性的阿拉伯胶取代加拿大胶，使试验过程更加安全。