... 挪威杉木 white deal 冷杉树脂fir resin冷杉树脂胶 canada balsam ...
双语例句
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Canada balsam: a viscous yellowish transparent resin obtained from the balsam fir and used as a cement for glass lenses and for mounting specimens on microscopic slides.
Canada balsam: a viscous, yellowish, transparent resin obtained from the balsam fir and used as a cement for glass lenses and for mounting specimens on microscopic slides.
The paper based on a comparison research between resin impregnation treated Chinese fir and untreated Chinese fir, concerning the characters of shrinkage, swelling and water absorption.