基本解释动脉导管后的同根派生 postductal相关词英汉例句Postductal region of aortic arch 主动脉弓管后区postductal type coarctation of aorta 导管后型主动脉缩窄postductal coarctation 导管后缩窄Postductal coarctation of aorta 主动脉管后缩窄postductal coratation 导管后缩窄postductal更多例句