However, caution is advised if the alar base has been previously excised, if the alar base incisions extend more than 2 mm above the alar groove, and the lateral nasal artery is damaged bilaterally.
但是，对那些在术前已做过鼻翼基底切除， 鼻翼基底切口在鼻翼沟上方超过2毫米和双侧侧鼻动脉受损过的病例仍要保持警悌。
PTC element is fixed in aluminium tube and keeps insulated with the aluminium tube. Alar or tooth-groove heat diffusing slice is fixed on the aluminium tube.
PT C元件安装在铝管内且与铝管绝缘，铝管外装有翅片关或槽状散热片。
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