Physicists have proven through exhaustive observation and experimentation over the course of a century that it takes 5,730 years for Carbon-14 atoms to decay into a stable Nitrogen-14.
在过去一个世纪中,物理学家们透过全面的观察与实验,证明碳- 14原子要花费5,730年的时间来衰变为一个稳定的氮- 14原子。
By using rice varieties Wuxiangjing 14 and Wujing 15 as materials, the effects of nitrogen application on RVA profile characters under different soil fertility levels were studied.
以武香粳14和武粳15为材料,研究了不同地力水平下施氮量对稻米淀粉rva谱特性的影响。
In the refrigerant container (11), a liquid nitrogen layer (13) on the cryogenic temperature side and a nitrogen gas layer (14) on the normal temperature side are arranged next to each other.
在该制冷剂槽(11)中,低温侧上的液氮层(13)和室温侧上的氮气层(14)彼此相邻布置。
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