领导梯队 Leadership Pipeline

梯纹导管 [植] scalariform vessel ; scalariform duct ; vasa scalariformia

梯级导轨 step track ; step roller track ; step roller guide rail

梯级先导闪电 stepped leader

导体梯度 conductor gradient

梯级先导 [地物] Stepped Leader

阶梯扭波导 step twist

传导热梯度 conductive thermal gradient