Cholecalciferol is produced by irradiation of 7-dehydrocholesterol with ultraviolet light either from the sun or from an artificial source.
胆钙化醇是7 ？脱氢胆固醇经日光或人工来源的紫外线照射而产生的。
Cholecalciferol is produced by irradiation of 7-dehydrocholesterol with ultraviolet light either from the sun or from an artificial source.
胆钙化醇是7脱氢胆固醇经日光或人工来源的紫外线照射而产生的。
The results of emulation show that the reflective spectrum is different under irradiation of a wide band light source with different nonuniform temperature variation fields.
仿真结果表明，对于不同的非均匀温变场，在宽带光源照射下的反射谱是不同的。
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