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

• 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。
• Influences of Catalyst Amount in Xerogels Precursors on the Structure and Property of Silicon Carbide
  前驱体凝胶中催化剂含量对碳化硅结构和性能的影响
• 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。
• Gray and Burns were precursors of the Romantic movement in English Literature.
  格雷和伯恩斯是英国文学浪漫主义运动的先驱。
• Experimental research through to the removal of organic pollutants in the water, disinfection by-products of the precursors to improve the quality of drinking water.
  通过试验研究，达到了去除水中有机污染物、消毒副产物的前体物，提高饮用水水质的目的。
• 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。
• 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。
• 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
• 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。
• The study on variation regularity of geomagnetic field is fundamental to pick up seismic and geomagnetic precursors.
  对地磁场变化规律性的研究是提取地震地磁前兆的基础。