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。
Vitamin b12 is destroyed by oxidizing and reducing agents, by aldehydes, ascorbic acid, ferrous salts, vanillin and acacia . 维生素B12被氧化剂和还原剂、醛类抗坏血酸、二价铁盐、香草醛和阿拉伯树胶破坏。
Covered or clogged with or as if with gum 涂有树胶的用或似乎用树胶覆盖或填充的
Gums and mucilages are not distinguishable chemically 用化学的方法区分不出树胶和粘胶。
An opaque pigment used when painting in this way 树胶水彩画颜料作这种画时所用的不透明颜料
A painting executed in this manner 树胶水彩画用该种方法画成的画
Consisting of or containing gum 树胶的由树胶组成的或包括树胶的
Gum elastic bougie 弹性树胶探条
Gums and mucilages 树胶和黏液
Gum any substance that swells in water to form a gel or a sticky solution 树胶:是所有能够在水中膨胀形成凝胶或粘性溶液的物质的总称。