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 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。
• 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。
• 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。
• 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 mechanism of many earthquake precursors is related to fluids deep inside the Earth.
  许多地震前兆的机理与地球深部流体相关。
• 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
• 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。
• Various preparation methods of lithium-manganese oxide and lithium-titanium oxide which act as precursors of lithium ion-sieves were introduced, respectively.
  详细介绍了作为锂离子筛前驱体的锂锰氧化物和锂钛氧化物的制备方法，包括固相烧结法和液相反应法等。