Methods:The arch width of 38 patients was expanded by use of removable appliances which contained single or conjunctive duplex spring and expansing arch spring.是什么意思_Methods:The arch width of 38 patients was expanded by use of removable appliances which contained single or conjunctive duplex spring and expansing arch spring.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句