计算机应用 信息系统与信息化 释文 Web information extraction, Web IE 万维网信息提取
- second orthogonality relation
- second Pappus theorem
- second partial derivative
- second pendulum
- second-person virtual reality
- second plenary session of ninth central committee of CPC
- Second Plenary Session of Seventh CPC Central Committee
- second polar
- second polar body
- second power
- second power point
- second principal line
- second principal plane
- second problem of cousin
- second prolongation
- second quadrant
- second quantization
- second quantization method
- second quantization representation
- Second Repbulic of Venezuela
- Second Republic of Spain
- Second Revolution
- second ring isomorphism theorem
- Second Saudi State
- second separation axiom