The body gets most of its vitamin D not from diet but from skin exposed to the ultravioletBradiation in sunlight.
身体获取的大部分维他命D不是从饮食而是靠皮肤曝露在阳光中的紫外线B射线取得的。
2
As skin pigmentation increases, so does the period of exposure to ultravioletBradiation from sunlight needed to synthesise adequate amounts of vitamin d.
当皮肤色素沉着增多,所以需要暴露于阳光下紫外线B辐射的足够时间以合成足够数量的维生素d。
3
The polyamine content in the leaves of rice affected by ultravioletB (UV B, 280—320 nm) radiation has been detected with HPLC.