植物根孔 root channels ; plant root channel
根尖孔 [口腔] Apical foramen
牙根尖孔 [解剖] apical foramen ; [解剖] foramen apicis radicis dentis ; foramen apicis dentis ; apical foramen of tooth
无根喷气孔 rootless fumarole
通孔根 via stub
最小根尖孔直径 minimal apical foramen diameter
根尖穿孔 apical fenestration
根管扩孔钻 root-canal reamer
你能否用一根直径为3 mm的不锈钢棒，在旁边钻出一个直径为2 mm、深度为3 cm的孔？
Can you take a stainless cane with 3 mm in diameter and drill a hole of 2 mm alongside the cane at the depth of 3 cm?
结果：新型根管充填材料能够严密地封闭根尖孔，与根管壁间的密合性优于常用根管充填材料。
Result: The novel root canal material can seal apical densely and has better degree of obturation than normal materials.
当穿刺针安全插到位后，在神经根离开椎间孔的部位，即两个椎体相连接处侧面的开口处进行二次注射。 。
Once the needle is safely positioned, there is a second injection into the nerve root where it exits the foramen, a side opening where two vertebrae meet.
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