The subsequenteffect of low temperature on photosynthesis in pot cultured tobacco seedlings were studied with a CIRAS-1 photosynthetic system, and related photosynthesis indexes were tested.
采用CIRAS 1光合系统测定了各项光合指标，研究了低温对烟苗叶片光合作用的后续影响。
2
Subsequent experiments reproduced this effect with other stimuli, such as the sound of fingernails on a chalkboard and photographs of disgusting insects.
随后的实验利用其它刺激物再现了该结果，如指甲刮擦黑板的声音和恶心的昆虫图片。
3
It's not only children who display this kind of reaction to rewards, though, subsequent studies have shown a similar effect in all sorts of different populations, many of them grown-ups.