NNA

基本解释

You nna call back? I could let the machine pick up.
你要再打一次吗？我可以打开留言机。
The effect of L NNA on DND was observed simultaneously.
同时观察了 L-NNA对海马区 NOS活性和 CA1 区病理改变的影响。
L arginine ( L Arg), a precusor of NO, had no direct effect on sleep and W, but blocked the effect of L NNA.
NO前体L?精氨酸（L?Arg）对睡眠?觉醒无直接影响，但可对抗L?NNA的促睡眠效应。
Preinjection of L NNA and methylene blue into NPB separately blocked the depressor effect elicited by L Arg.
L - Arg在 NPB的降压效应可被 NPB内预注射 L - NNA或鸟苷酸环化酶抑制剂亚甲蓝所阻断。
Using the NNA,the designed filter coefficients can be obtained from the specified amplitude-frequency responses.
根据给定的幅频响应指标，按该算法可获得滤波器系数。