Positive vertical temperature gradient in concrete and steel superstructures.

混凝土和钢筋上部结构正垂直温度梯度。

youdao

Due to the influence of radial positive pressure gradient, low-energy gas moves along trailing area to hub. That causes rapid dissipation and weakening of downstream passage vortex.

在叶栅下游，由于径向正压梯度的影响，低能气体沿尾流区向轮毂输运，引起下通道涡的迅速消散与衰减。

youdao

Ore zones occur in the edge of local positive gravity anomaly, in the strike interrupted area or steep gradient area of regional aeromagnetic anomaly.

而且矿区、矿化集中区还位于反映深部构造变异的局部重力异常区边缘、区域航磁走向中断区或梯度变化带附近。

youdao