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

• It indicated that the geomagnetic anomaly is a promising phenomenon in the studies of earthquake precursors.
  说明地磁异常变化是一种有希望的地震前兆现象。
• 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 pink intranuclear inclusions in the erythroid precursors seen here are characteristic for parvovirus infection.
  红细胞前体内的粉红色核内包涵体是微小病毒感染的典型特征。
• 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。
• Research progress on preparation methods for precursors of lithium ion-sieve
  锂离子筛前驱体制备方法的研究进展
• 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。
• 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。
• 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 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。
• 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。