[计] 实际顺序, 图象系统, 电源, 保护状态
[化] 磷脂酰丝氨酸
n a note appended to a letter after the signature
n a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms
n the 16th letter of the Roman alphabet
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