第二、第三掌背动脉  Second or third dorsal metacarpal artery

第二期变形  second deformation

第二期的  Secondary

第二期肥厚层  Secondary thickening

第二期缝合  secondary suture

第二期截断术  secondary amputation

第二期生长  secondary growth

第二期愈合  second intention; healing

分娩第二期  second stage of labour

减数分裂第二期  metaphase Ⅱ (M

[第]二级光谱  secondary spectrum

[第]二阶舒勒不稳性  second order Shul instability

[第]二阶相变  second-order phase transition

《一九XX年第二季经济报告》  Second Quarter Economic Report 19XX

〔第〕二代杂种  F2

〔第〕二代杂种分离比  F2ratio

Berthelot第二维里系数  Berthelot second virial coefficient

CMOS第二代电流控制传输器(CCCⅡ)  cmos cccii

CMOS电谐调第二代电流传输器(ECCⅡ)  CMOS electronically tunable second generation current conveyor(ECC