其中大部分故障是石墨轴承磨损严重，甚至开裂。
The great part among faults was serious wear of graphite bearing, or even cracked.
用于颌骨修复的修复体支架属于薄壁件，而薄壁件在成型过程中极易出现翘曲变形甚至开裂现象。
The precision is improved and meets the clinical needs. The bracket used for repairing the skull defects is thin, which is inclined to be warpage during sintering.
2土豆要用文火煮烧，才能均匀地熟烂，若急火煮烧，会使外层熟烂甚至开裂，里面却是生的； ；
Simmer potatoes to use 2 burn in order to evenly Shulan, if the emergency heat and simmer for burning, cracking and even make the outer Shulan, which is born;
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