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

• For precursors, confidence would come from empirical observations; understanding mechanisms would be desirable but not necessary.
  对前兆来讲，信心来自经验主义的观察；理解机制是期求的，但并非必要。
• 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。
• Both insulin resistance and fat-marbled muscles are metabolically unhealthy conditions that can be precursors of diabetes.
  从新陈代谢角度来说，胰岛素抵抗和肌肉中脂肪赘生都是不利健康的，是患上糖尿病的先兆。
• 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
• You can also induce the cells by using compounds called precursors to produce other new compounds by way of biotransformation.
  你还可以用前体化合物让细胞通过生物转化的方式制造其他新的化合物。
• For our evolutionary precursors out in the wild, the fight-or-flight response was a valuable survival mechanism.
  对于那些处于野外进化中的祖先来说，逃跑或战斗响应是一个宝贵的生存机制。
• VRC01 precursors do not bind tightly to HIV, but rather mature extensively into more powerfully neutralizing forms.
  VRC01的前体并没有牢固结合HIV，但是宁愿成熟为具有更广泛的有压力的中和形式。
• 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。
• 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
• Influence of Irrigation Pattern on DOC and Formation of DBPs Precursors in Soil
  灌溉模式对土壤中DOC及DBPs前驱物形成的影响