求翻译：电缆穿越楼板、墙的孔洞和进出动力盘、动力箱等的进出口必须进行防火封堵，并在孔洞外1.5m范围内刷防火涂料4～5次。是什么意思？

Cable across the floor, wall and out of holes and power disk, power boxes, etc. must be fire blocking the import and export, and 1.5m in the hole outside the fire paint brush within 4 to 5 times.

cables crossing 50,730 , wall coverings and access the disk drive, power boxes, import and export of fire stopper must be carried out, and in holes, brush fire retardant coatings within 1.5 m 4 to 5 times.

The electric cable passes through the floor, the wall hole and the turnover power plate, the power box and so on the import and export must carry on the fire protection trap, and in the 1.5m scope brushes the fire protection coating 4~5 times outside the hole.

Cables cross the slab, wall voids and leave power and power box where the import must conduct fire blocking and brush within the outside hole 1.5m 4~5 fire retardant coatings.

Cable holes to cross the floor, wall and out of power strips, power box and import and export must conduct fire kill, and within the outside hole 1.5m brush fire retardant coatings for 4~5 times.