查询词典 precursor

It was showed that trapping reactions in singlet oxygenation of 1 occured mainly on the stage of zwitterionic intermediate (2), whereas was not a major precursor to trapping prod-ucts.

结果显示，在1的单重态氧反应中，捕捉反应主要发生于两性离子(2)阶段，而4并非导致捕捉产物的重要中间体。

An originator of a line of descent;a precursor.

这幅画的线条很流畅。

An originator of a line of descent;a precursor .

氰化物可以作一个天门冬酰胺的酰胺氮前体。

An originator of a line of descent;a precursor.

前辈家族血脉的开始者；先驱

The stabilisation of prices turned out to be a precursor to broader economic recovery.

房价的稳定向来是经济全面复苏的先兆。

The stabilisation of prices turned out to be a precursor to broader economic recovery.

因此，此时住房价格的重新趋稳被视为整体经济恢复的一个前兆。

Acini contain a small amount of secretions, but few have amyloid precursor.

腺泡内含有少量分泌物，但很少有淀粉样体。

The grain size of the films increased with the increase of substrate temperature, deposition time and atomizing rate of precursor.

基片温度对薄膜的组成影响较大，高沉积温度会导致LaNiO〓薄膜的分解，使薄膜的电阻率异常增大。

Subsequently, the similar microstructured NiO hollow microspheres were obtained by calcining the above precursor at 400 ℃ for 2 h.

研究了氨在Ni2纳米片的形成与组装过程中的作用，提出了可能的生长机理。

On the contrary, Gin alone can promote the development of intestinal mucosal precursor ceils, but it had little effects on their expansion.

Gln对小肠黏膜前体细胞在体内的发育有显著的促进作用，而对小肠黏膜前体细胞的体外扩增则无明显的作用。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。