According to different concrete cracks tow methods commonly adopted in engineering are introduced to prevent concrete cracks. They are surface repair method and internalrepair method.
针对不同情况下的混凝土裂缝，介绍了工程中常采用的两种治理方法，即表面修补法和内部修补法。
2
Internal snapshots are removed if the FSCK command has to modify a JFS2 file system to repair it.
如果fsck命令必须修改JFS2文件系统来修复它，将删除内部快照。
3
But Missouri-based Insituform Technologies’s new InsituMain liner can withstand the internal forces of pressurized pipe, allowing in-place repair of drinking-water mains.