氨 的中文句子和英文句子

降钙素一种缩氨酸荷尔蒙，由人体内的甲状腺产生。在不增加钙含量的情况下，可降低血中钙和磷酸盐的含量

A peptide hormone, produced by the thyroid gland in human beings, that lowers plasma calcium and phosphate levels without augmenting calcium accretion.


氨是种化学物质。

Ammonia is a chemical substance.


氨是无色并有强烈气味的气体。

Ammonia is a colorless gas with strong smell.


（氨基酸）非必需的是正常的运转所需要的物质的，但因为机体有从其它营养成分合成它的能力，因此不需要被包括在日常的食物中的

Being a substance that is required for normal functioning but does not need to be included in the diet because of the body's ability to synthesize it from other nutrients.


多肽一种含有许多氨基酸分子的肽，典型地是在10和100之间

A peptide containing many molecules of amino acids, typically between10 and100.