The temperature difference of welding zone can be decreased with small dipping angle, high dipping speed and low heat exchange coefficient of dipping Zn liquid.
降低浸镀锌液的换热系数，采用小角度快速浸入可以降低焊缝区域温差。
2
Based on the site observation data of Hengmen Channel, it advances an analysis to the wave action induced by a high-speed catamaran to dike and the maximum wave pressure coefficient.
根据横门水道现场观测资料，分析了双体快速船船行波对堤岸的作用和最大波压强系数分布。
3
Seedling grew fast in orchard, having strong resistance, but the low survival rate of field cutting, propagation coefficient is not high, limiting the speed of its promotion.