美 [ˈnekɪŋ daʊn]
缩颈：指在印刷电路板上的通孔或接触点的交汇处，通常呈现出滴状的特征。
颈缩
缩口
... thermomechanical necking 热机械面收缩现象 localized necking 局部颈缩 necking down 缩口 ; 收缩 ; ...
... thermomechanical necking 热机械面收缩现象 localized necking 局部颈缩 necking down 缩口 ; 收缩 ; ...
... neck 颈;颈状物;海峡;地峡;狭窄海岬 necking down 颈缩 necking 缩颈 ...
... necking in operation 割缺口 necking down 缩颈 necking point 颈缩点 ...
收缩
If this arc voltage saltation information can be extracted, we will get the characteristic information of necking down formation.
若能从电弧电压信号中提取出拐点发生时突变的信息，则可望提取到缩颈发生的特征信息。
We had clear enough evidence about a month and a half ago that allowed us to start necking down to the point we were able to prosecute the action last night against that safe house.