基本解釋[醫(yī)藥科學]牙弓前張英漢例句雙語例句Methods To adopt screw expansion appliance to gradually expand posterior and anterior dental arch with 18~33 day activation and 3~6 month retainment.方法采用螺旋擴大矯治器進行前牙和后牙的擴弓，加力18～33天，戴用保持器3～6個月。anterior expansion arch更多例句詞組短語短語anterior expansion of arch 牙弓前張anterior expansion arch更多詞組專業(yè)釋義醫(yī)藥科學牙弓前張