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 induction effect of structural and functional analogs and the precursors of JA on floret opening, were investigated.
  研究了茉莉酸结构类似物、功能类似物以及茉莉酸生物合成的前体物对水稻颖花开放的诱导效应。
• 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。
• 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。
• 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。
• 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 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。
• 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
• 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。
• The statistical inspection of the relationship between precursors and earthquakes plays a very important role in probability prediction.
  前兆和地震之间的关系的统计检验对于概率预测起着十分重要的作用。