上颌第一磨牙近中颊根第二根管
The second mesiobuccal canal of maxillary first molar
近颊根第二根管
the second mesiobuccal canal
第二中值定理
second mean value theorem
second mean-value theorem
积分第二中值定理
the second mean value theorem of integral
the second mean value theorem of integration
the second second mean value theorem of integration
the second integral mean-value theorem
the second mean value theorem for integrals
second mean value theorem for integrals
第二、第三掌背动脉
Second or third dorsal metacarpal artery
第二玻恩近似
second Born approximation
第二代接近式X射线光刻
second generation proxi mity X-raylithography