拉掉

She yanked the lid off the tin.

她猛一下拉掉了金属盒的盖子。

By improving the BTR1-PST286 wish single sucperd hydraulie trepanner made in Germany.Realize adjustable of electric line.preventing accidents of electric line or stecly line fall down.

通过对新引进的全德国制造BTR1-PST286液压钻车配套单轨吊技术改造,实现电缆的自拉自,避免了电缆拉脱或起吊钢丝绳拉掉事故的发生。