nodal

1.the arc whose ideated centre is a nodal point in the composition.

此圆拱设想中的中心为构造中的一个节状点。

2.Bright areas reveal undeflected or stationary nodal regions while contour lines trace out areas of constant vibrational amplitude.

亮区表偏转的或稳定的节区而轮廓线则等振幅的区域。

3.Previous work from our laboratory reported that aggressive melanoma and breast carcinoma express the embryonic morphogen Nodal, which is essential for human embryonic stem cell (hESC) pluripotency.

然而，癌症相关的环境缺乏合适的调控机制来维持一个正常的细胞表型。