Cholecalciferol is produced by irradiation of 7-dehydrocholesterol with ultraviolet light either from the sun or from an artificial source.
化醇是7?脱氢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.
化醇是7?脱氢固醇经日光或人工来源的紫外线照射而产生的。
声
：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审
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