Cholecalciferol is produced by irradiation of 7-dehydrocholesterol with ultraviolet light either from the sun or from an artificial source.
胆
化醇是7?脱氢胆固醇经日
或人工来源的紫外线照
生的。
声明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
The parathyroid hormone gets the bones to release calcium, and gets the kidneys to reabsorb more calcium so it's not lost in the urine as well as synthesize calcitriol also known as 1,25-dihydroxycholecalciferol also known as active vitamin D.
甲状
素作用于骨骼使其释放离子，也作用于肾脏而增加的重吸收，这样就不会随尿液排出；以及用于合成骨
，也称为1，25-二羟基胆固，又叫活性维生素D。
