precursor是什么意思_音标_用法_例句

简单释义：

n. 先驱；先锋；前身

网络 前体；前驱物；先兆

变形：

复数：precursors  

完整释义：

n.

1.前兆,预兆,先驱
2.〔遗〕前体
3.前辈,前驱,先锋;前任
4.前身细胞
5.预兆;先兆
6.〔化〕原料;母体
7.产物母体
8.先质
9.预报器
10.【原子能】前驱波;初级粒子

例句：

1. Thus it appears that any variability whatsoever in background seismicity can be claimed, after the fact, to have been a precursor.
   这样看来，可以将背景地震活动性中的任何变化，在地震发生之后，认为是一种前兆。

2. Opposition by colonists to unfair taxation by the British was a precursor of the Revolution.
   殖民地居民对英国不公正税收的反抗预示着革命的到来。

3. The ADP report is often seen as a precursor to the Labor Department's big monthly jobs report due out Friday.
   ADP就业报告被看做美国劳工部将于周五公布月度就业报告的预兆。

4. Impatience is often a precursor to self-punishment, so stop way before the red light hits.
   焦躁通常是自我惩罚的前兆，因此，你得赶快在红灯亮起之前停下来。

5. It's a precursor to dynamically morphing wallpaper planned for a release or two down the road.
   这是一个变形动态墙纸的前兆。

6. The rebels were driven out of Bin Jawwad the next day, a precursor to Qaddafi's ruthlessly efficient march east in the following ten days.
   次日叛军便被赶出本贾瓦德，这是卡扎非开始向东部无情的高速推进的前兆。

7. RNA, the single-stranded precursor to DNA, normally expands one nucleic base at a time, growing sequentially like a linked chain.
   DNA的单链前体分子，一般一次延伸一个碱基，就像延长的锁链。

8. The results show that above – named observation data are able to reflect short – impending precursor information before some medium shocks .
   结果表明，上述各测项能够较有效地反映出某些中等地震前兆的短临异常信息。