| 单词 | 复合物 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔PABA〕A crystalline para form of aminobenzoic acid that is part of the vitamin B complex and is widely used in sunscreens to absorb ultraviolet light.对氨基苯酸：一种结晶的氨基苯酸形式，是维他命B复合物的一个组成部分并被广泛地用于过滤剂中以吸收紫外线光美国传统〔activate〕Biology To convert (certain biological compounds) into biologically active derivatives.【生物学】 使活化：变（某些生物复合物）为生物性能活跃的派生物美国传统〔chelate〕A chemical compound in the form of a heterocyclic ring, containing a metal ion attached by coordinate bonds to at least two nonmetal ions.螯合物：杂环化学复合物，由一个金属离子与两个或两个以上非金属离子构成配位键美国传统〔chelate〕Chemistry To combine (a metal ion) with a chemical compound to form a ring.【化学】 把（一个金属离子）与化学复合物结合成环美国传统〔chromatin〕A complex of nucleic acids and proteins in the cell nucleus that stains readily with basic dyes and condenses to form chromosomes during cell division.染色质，核染质：细胞核中由核酸与蛋白质组成的核酸复合物，容易被基本染料染色， 在细胞分裂期会浓缩而形成染色体美国传统〔classical pathway〕The activation of complement by an antigen-antibody complex.传统传导：补体的活化。是藉由一个抗原抗体的复合物美国传统〔clathrate〕Chemistry Of or relating to inclusion complexes in which molecules of one substance are completely enclosed within the crystal structure of another.【化学】 格（或笼）状包合物的：关于包含复合物的，在这种包合物中一种成分的分子被完全包嵌在另一种成分的晶体结构里美国传统〔electrometallurgy〕The use of electric and electrolytic processes to purify metals or reduce metallic compounds to metals.电冶金：利用电或电解方法来精练金属或将金属复合物熔炼为金属美国传统〔electrophile〕A chemical compound or group that is attracted to electrons and tends to accept electrons.亲电子试剂：一种化学复合物或原子团，被电子吸引并具有吸引电子的倾向美国传统〔inhibit〕Antioxidant compounds in tea can help to inhibit the growth of tumours.茶叶中的抗氧化复合物有助于抑制肿瘤的生长。外研社新世纪〔label〕Chemistry To add a tracer to (a compound).【化学】 使示踪：向（一个复合物）加示踪剂美国传统〔petrochemistry〕The chemistry of petroleum and its derivatives.石油化学：石油及其复合物的化学美国传统〔synaptinemal complex〕A ribbonlike structure consisting of three protein components and extending across the region of synapsed chromosomes during the prophase of meiosis.接合丝复合物，联合丝复合物：一种带状构造体，由三个蛋白质要素组成，在成熟分裂的前期扩展到已联合的染色体之外美国传统 |
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