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

• 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。
• 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。
• Effect of infrasound on the proliferation of neural precursors in the subventricular zone of adult rats
  次声对成年大鼠脑室下区神经前体细胞增殖的影响
• Likewise, increased XOR levels hiked activity of the PPAR-gamma receptor in both fat cells and fat cell precursors.
  同样，增加XOR水平会增强脂肪细胞和脂肪祖细胞中的γ-PPAR受体的活性。
• 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。
• 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
• 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。
• 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。