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柯林斯词典释义

福克斯词典 \ 英汉词典 \

Precursors是什么意思？

Precursors

英[pri:'kɜ:səz] 美[pri'kɜsəz]

n. 先驱( precursor的名词复数 )，先行者，先兆，初期形式；

例句

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.
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.
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.
In vitro studies revealed the inhibition of acid synthesis and lipogenesis from various precursors. 体外研究揭示了可抑制来自于各种前体的脂肪酸合成和脂肪形成.
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.
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.
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.
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.
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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柯林斯高阶英汉双解学习词典释义

N-COUNT

先驱；先锋；前身

A precursor of something is a similar thing that happened or existed before it, often something which led to the existence or development of that thing.
例句
Real tennis, an ancient precursor of the modern game, originated in the eleventh century... 室内网球，现代网球运动的古老前身，起源于11世纪。 He said that the deal should not be seen as a precursor to a merger. 他说该笔交易不应该被看作是合并的前兆。

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