Sucre perches on the top bunk acting as lookout over the cell block, while Michael grinds the other end of the bleacher bolt against the steel bunk frame.
Michael在牢房的铁床架上磨着那个六角螺钉的另一端，Sucre躺在的上铺给他望风。
2
Cell structure improves the strength of steel greatly.
胞状结构的出现大大提高了钢的强度。
3
This text analysed the influence of steel elastomer material, heat treatment craft to load cell lag error combining internal friction mechanism and practical experience.