precursors

英 [pri(ː)ˈkɜːsəz]

美 [priˈkɜrsərz]

n.  先驱; 先锋; 前身
precursor的复数

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.
  1. 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。
  2. 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。

双语例句

• Cobalt salt was employed as catalyst precursors, copper plate as substrate and ethanol as carbon source.
  采用乙醇催化燃烧法，以钴盐作为催化剂先体、薄铜片作为基底制备碳纳米管。
• In many ways, they were the precursors to modern mash-ups& sort of like local mash-ups.
  在许多方面，它们是现代mash-up的前身&有点像本地mash-up。
• 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。
• The pink intranuclear inclusions in the erythroid precursors seen here are characteristic for parvovirus infection.
  红细胞前体内的粉红色核内包涵体是微小病毒感染的典型特征。
• Likewise, increased XOR levels hiked activity of the PPAR-gamma receptor in both fat cells and fat cell precursors.
  同样，增加XOR水平会增强脂肪细胞和脂肪祖细胞中的γ-PPAR受体的活性。
• Study on High Molecular Weight Polyacrylonitrile Precursors for Carbon Fibers
  碳纤维用高分子量聚丙烯腈前驱体的研究
• Research on statistical distribution of pollutants in municipal wastewater RELEASE OF NO_x AND ITS PRECURSORS DURING COAL GASIFICATION
  城市污水中污染物监测与分布规律探讨煤气化中NO2及其前驱物释放规律研究
• German World War Two rocket weapons were the precursors of modern space rockets.
  德国在二战中的火箭武器是现代航天火箭的前身。
• The seismo-electromagnetic precursors have been considered as an effective means of the short-term and imminent earthquake prediction.
  强震前存在地震电磁异常现象已被大量强震震例所证实，分析地震电磁前兆已成为地震短临预测的有效手段。
• Effect of Amino Acid Precursors on Callus Growth and Taxol Content
  几种氨基酸前体物对红豆杉愈伤组织的生长和紫杉醇含量的影响