加拿大膠（英語：Canada balsam）也叫冷杉膠（英語：balsam of fir），是膠冷杉的油樹脂，常用於黏合光學元件或切片標本。雖然也叫加拿大樹膠、加拿大香膠，但加拿大膠既非樹膠又非香膠。[1]
參考資料
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