precursor
英 [priˈkɜːsə(r)]
美 [priˈkɜːrsər]
n. 先驱; 先锋; 前身
复数:precursors
Collins.1 / BNC.10361 / COCA.9664
牛津词典
noun
- 先驱;先锋;前身
a person or thing that comes before sb/sth similar and that leads to or influences its development
柯林斯词典
- N-COUNT 先驱;先锋;前身
Aprecursorof something is a similar thing that happened or existed before it, often something which led to the existence or development of that thing.- 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。
- Real tennis, an ancient precursor of the modern game, originated in the eleventh century...
英英释义
noun
- something that precedes and indicates the approach of something or someone
- a person who goes before or announces the coming of another
- a substance from which another substance is formed (especially by a metabolic reaction)
双语例句
- Comparing the ratio of testosterone to epitestosterone can then indicate whether testosterone or a precursor has been taken.
因此测定睾酮与表睾酮的比例,能够反映出(运动员)是否服用了睾酮或者它的前体药物。 - They then examined their arteries for arterial stiffness, often a precursor to high blood pressure and heart disease.
然后研究者检查了被测试着的动脉硬化情况。动脉硬化是高血压和心脏疾病的前兆。 - An amino acid that is essential for growth and normal metabolism; a precursor of niacin.
生长和正常的新陈代谢所必需的氨基酸,烟酸的前体。 - Hobbes is a precursor of modern positivism and analytical jurisprudence.
霍布斯是现代实证主义法学和分析法学的先驱。 - Exogenously supplied aspartate is not an active precursor of asparagine in plant tissues.
外来供给的天门冬氨酸,在植物组织中并不是一个活跃的天门冬酰胺前体。 - Cyanide can serve as precursor for the amide nitrogen of asparagine.
氰化物可以作一个天门冬酰胺的酰胺氮前体。 - Amphetamines is one kind of synthetic compounds whose precursor structure is amphetamine.
苯丙胺类物质是一大类人工合成的以苯丙胺为母体的化合物。 - This prediction was based on a number of geophysical observations of precursor events as well as abnormal animal behavior.
除了对地震前兆的地球物理现象观察,这次地震的准确预测还要多亏对动物异常活动的观察。 - The sol-gel coating was prepared with cellulosic fabrics and synthetic fabrics as carriers and TEOS as precursor.
以纤维素织物和合成纤维织物为载体,以硅酸乙酯(TEOS)为水解前驱体,对织物载体进行溶胶凝胶涂层整理。 - In plant cells the principal precursor of alanine, as well as leucine and valine, is pyruvate.
植树细胞中丙氨酸和亮氨酸、缬氨酸的主要前体是丙酮酸。