| 单词 | 组成物 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔lignin〕A complex polymer, the chief noncarbohydrate constituent of wood, that binds to cellulose fibers and hardens and strengthens the cell walls of plants.木质素：一种复杂聚合物，是木头非碳水化合物的主要组成物，作用是凝聚纤维素并增强细胞壁的强度美国传统〔plaque〕Pathology A small disk-shaped formation or growth; a patch.【病理学】 色斑：一块小型的圆盘形组成物或肿瘤；色斑美国传统〔pyrocellulose〕A cellulose nitrate used as a component of smokeless powder.火纤维素：硝酸纤维素，用于无烟的炸药的组成物质美国传统〔resolve〕Chemistry To separate (an optically inactive compound or mixture) into its optically active constituents.【化学】 分解：将（光学上稳定的一种化合物或混合物）分离为光学上不稳定的组成物美国传统〔rope〕A sticky glutinous formation of stringy matter in a liquid.丝状黏质，黏丝：液体中丝状物质的胶粘的组成物美国传统〔rosette〕A roselike marking or formation, such as one of the clusters of spots on a leopard's fur.花号，星号：如豹子皮上的斑点族等形如玫瑰花的标志或组成物美国传统〔trace〕A constituent, such as a chemical compound or element, present in quantities less than a standard limit.痕量：比标准限度数量小的一种组成物，如化学化合物或元素美国传统〔wash〕To separate constituents of (an ore) by immersion in or agitation with water.水浸分离：通过浸入水中或与水反应的办法分离（矿物）的组成物质美国传统 |
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