Locking objects has no effect unless the sheet is protected. To protect the sheet, choose.
只有当保护工作表时，锁定单元格才会生效。
2
Once in place, tension is applied by the spindle mechanism by screwing down the adjustable locking device which then applies pressure to the bar, producing a perfectly tensioned roof sheet.
一旦到位，紧张是由主轴采用拧下来机制调节锁定装置，然后应用到酒吧的压力，产生一个完全张屋面板。
3
The waist and belly protection sleeve consists of a front belly sheet (1), fat locking nets (2) and a rear back sheet (12).