This paper analyzes causation of slotopening in prefabricate slab and puts forward measure to prevent slotopenmg.
本文分析了顸制楼板顺板缝产生裂缝的原因，并提出了相应的防治措施。
2
The slotopening of the non ferromagnetic material slot 90 provided on the non ferromagnetic material barrel 50 faces to the stator direction or the rotor direction.
非铁磁材料筒(50)上开设的非铁磁材料槽(90)的槽口向定子方向或向转子方向。
3
A "slot" is normally a small rectangular opening in something, but a "mail slot" is a small box that has a person's name on it and holds mail for that person.