The most reason of cracking breakout is badness of arc and high temperature of molten steel and high withdrawal speed.

对弧不良、钢水温度高、拉速快是造成裂纹漏钢的主要原因；

youdao

By cleaning molten steel, controlling casting temperature and withdrawal speed, the compliance ration in ultrasonic inspection of plate was enhanced from 82.5% to 92%.

采取提高钢质纯净度、控制浇注温度和拉速等改进措施，检测合格率由82.5%提高到92%。

youdao

But the command in Afghanistan has put in place plans to speed the withdrawal while continuing training, a defense official said.

WSJ: Obama to Draw Down Troops in Afghanistan

But the command in Afghanistan has put in place plans to speed the withdrawal while continuing training, according to a defense official.

WSJ: Obama to Draw Down Troops in Afghanistan