您要查找的是不是：
- 让步从句(如由as、although或even if引导的表示与主句意思相反的从句) A concessive clause,eg one introduced by as,although or even if,indicating a contrast with the main clause
- As, As
- IF钢 IF steel
- AS号 AS number
- Ti-IF钢 Ti-IF steel
- IF模型 IF model
- 痕量As Trace arsenic
- AS-ODN antisense olignucleotides
- if语句 if statement
- ERM-IF ERM-IF
- AS-PCR AS-PCR
- As（V） As(V)
- IF估计 IF estimation
- IF转换 If-conversion
- AS-AQ法 AS-AQ
- AS-AQ浆 AS-AQ pulp
- 高强IF钢 high-strength IF steel
- AS联盟 AS Alliance
- If条件句 if - conditionals
- AS关系 AS relationship
