[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

C第二次世界气候会议  SWC

Fick第二定律  Fick’s Second Law; the Fick 2 law; Fick’s law; Fick second law

Fick第二扩散定律  Fick’s second diffusion law

GL第二方程  GL Ⅱ equation

g-第二可数  g-second countable

I-fuzzy第二可数性  I-fuzzy Second-countability

IPCC第二工作组  ipcc wgii; ipcc wg

Kennedy第二类牙列缺损  KennedyⅡdentition defect

Kepler第二定律  Kepler’s second law

Krashen的第二语言习得假设  Krashen’s Hypothesis

Lyapunov第二方法  the second method of Lyapunov; lyapunov’s second method