graft union

例句：

1. 1.The surgeon performed a successful graft union after removing the tumor.
   外科医生在切除肿瘤后成功进行了一次接合愈合。
2. 2.The researcher discovered that the graft union was not stable enough to support the weight of the new bone.
   研究者发现，接合愈合不够稳固，无法支撑新骨的重量。
3. 3. The patient's recovery was slow due to the weak graft union.
   患者的恢复进展缓慢，因为接合愈合不够牢固。