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
- 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。 - 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。 - This study provided a precursor of N-propionyl-D-mannosamine for the tumor-associated carbohydrate antigen.
为肿瘤相关糖抗原提供了N-丙酰甘露糖胺前体。 - Calcium deposits in the coronary arteries are considered a precursor of future heart disease.
冠状动脉中的钙沉积是导致人们将来患上心脏病的先兆症状。 - 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。 - 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。 - Is the precursor of DHA to promote brain development and enhance memory.
的前体，促进脑力发育和增强记忆力。 - 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。 - 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。 - Provisions on the type, scope, measures and methods for the administration of narcotic drugs, psychotropic drugs and precursor chemicals;
三是规定了麻醉药品、精神药品和易制毒化学品管制的种类、范围、措施和办法。