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

• 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。
• 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。
• 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。
• 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。
• They can be used in researches of seismic precursors, and have made many contributions to exploration of subsurface structure.
  在地震前兆的探讨方面占有一席之地；在探测地下构造中有许多贡献。
• 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。
• 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。
• 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。
• 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。