Phenyl ( or polyphenyl ) substituted epoxides serve as excellent precursors to phenyl ( or diphenyl ) carbenes.
某些苯代 ( 或多苯 ) 环氧乙烷是制取带苯环 ( 或二苯 ) 碳烯的极好原料.
辞典例句
Note the presence of megakaryocytes, erythroid islands, and granulocytic precursors.
可见巨核细胞, 红细胞岛和粒细胞前体细胞.
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Vascular endothelial progenitor cells ( EPCs ) are the precursors of endothelial cells ( EC ) .
血管内皮 祖 细胞是血管内皮细胞的前体.
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The absorption reactions of goethite and its precursors on arsenite were studied.
观察了针铁矿及其前体对溶液中亚砷酸根离子的吸附过程和吸附性能.
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Surpass precursors, surpass competitors, surpass yourself and surpass all.
超越前人, 超越对手, 超越自己,超越所有.
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Gray and Burns were precursors of the Romantic movement in English Literature.
格雷和伯恩斯是英国文学浪漫主义运动的先驱.
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The reason - these pathways provide the precursors for the biosynthesis of cell material.
因为这些方式为细胞材料生物合成提供前体.
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Aglycone precursors and glycosidases are two important compounds in tea aroma formation.
糖苷类香气前体和糖苷酶是制约香气形成的两个关键因素.
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OBJ file to read three - dimensional model, and converted into cell precursors express.
OBJ文件中读取三维模型, 并转换成单元体表示.
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Glycine and succinyl - CoA are precursors of 5 - aminolevulinic acid ( ALA ) biosynthesis.
甘氨酸和琥珀酸是红假单胞菌生物转化合成5-氨基乙酰丙酸 ( ALA ) 的前体.
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The precursors are tobacco alkaloids, nitrate and nitrite.
它们形成的前体物是烟草生物碱 、 硝酸盐和亚硝酸盐.
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In these respects he may be regarded as one of the precursors of Qing thought.
,我们可以嗅到清代的思想的新气息.
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New , sterically demanding 1, 3 - dialkylimidazolinium salts used as N - heterocyclic carbene precursors were synthesized and characterized.
合成并表征了一种新型的有空间需求的N - 杂环卡宾前驱体1, 3- 二烷基咪唑啉盐.
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The meat flavor is the reactionresult of a variety of the aroma precursors.
风味是由多种风味前体物经过一些基本的化学反应形成的.
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The mediaeval burgesses and the small peasant proprietors were the precursors of the modern bourgeoisie.
中世纪的城关市民等级和小农等级是现代资产阶级的前身.
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