The most valuable ultraviolet-B wavelengths of sunlight, 290 to 320 nanometers, are plentiful in summer.
日光中对人最有价值的UVB波长在290至320纳米，夏季较为充足。
The body gets most of its vitamin D not from diet but from skin exposed to the ultraviolet B radiation 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。
As skin pigmentation increases, so does the period of exposure to ultraviolet B radiation 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。
Vitamin D3 is available through diet, supplements and exposure of the skin to sunlight, or ultraviolet B (UV .
维生素D3可以通过饮食，额外补充及将皮肤暴露在阳光或者紫外线B（UV）下获得。
Narrow-band ultraviolet B (UVB) has better overall repigmentation rates and safety profile than either topical or oral psoralens and ultraviolet A (PUVA).
比起局部用补骨脂素或口服后再照UVA，窄谱紫外线有较好的恢复色素的效果和安全性。
The polyamine content in the leaves of rice affected by ultraviolet B (UV B, 280—320 nm) radiation has been detected with HPLC.
利用高效液相色谱法检测紫外光B辐射增强对水稻叶片内多胺的影响。
This product USES the latest scientific formula, a long continuous sunscreen sunscreen, ultraviolet a wave of strong segregation, B wave, avoid UV damage, improving dry skin, tan, red, oxidation.
本品采用最新科学配方，长时间防晒持续防晒，强力隔离紫外线A波、B波，避免紫外线伤害，改善肌肤干燥，晒黑，发红，氧化现象。
The estimated ultraviolet radiation attenuation coefficient and DOC concentration all existed markedly positive relationship; but UV-B wave band was higher than UV-A wave band.
估算得到的紫外辐射衰减系数与DOC浓度均存在显著性正相关，但UV - B波段要高于UV - A波段。
Objective To observe the effect and the safety of narrow-band ultraviolet B(NB-UVB) in the treatment of psoriasis vulgaris.
目的观察窄谱中波紫外线（NB-UVB）治疗寻常型银屑病的疗效及安全性。
Objective To study the efficacy and safety of combined narrow band-ultraviolet B(NB-UVB) and tazarrotene gel in treatment of psoriasis vulgaris.
目的探讨窄谱中波紫外线（NB-UVB） 联合他扎罗汀凝胶治疗寻常型银屑病的临床疗效及安全性。
Results The radiant intensity of ultraviolet B radiation was seasonal.
辐射强度与辐射粒子的能量、静质量、简并因子有关。
Results The radiant intensity of ultraviolet B radiation was seasonal.
辐射强度与辐射粒子的能量、静质量、简并因子有关。
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