交集 Intersection (set theory)
（重定向自Empty intersection）
![A和B的交集](/Images/godic/202501/11/Set_intersection0955.png")
![La intersección de A y B es otro conjunto A ∩ B que contiene sólo los elementos que pertenecen tanto a A como a B.](/Images/godic/202501/11/PolygonsSetIntersection.svg0955.png")
![Intersección de dos conjuntos A y B.](/Images/godic/202501/11/SetIntersection.svg0955.png")
![](/Images/godic/202501/11/Venn0001.svg0955.png")
数学上，两个集合A和B的交集是含有所有既属于A又属于B的元素，而没有其他元素的集合。
Empty intersection
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Intersection (set theory) 交集
（重定向自Empty intersection）
![](/Images/godic/202501/11/Venn_0000_0001.svg0955.png")
![Intersections of the Greek, English and Russian alphabet, considering only the shapes of the letters and ignoring their pronunciation](/Images/godic/202501/11/Venn_diagram_gr_la_ru.svg0955.png")
In mathematics, the intersection A ∩ B of two sets A and B is the set that contains all elements of A that also belong to B (or equivalently, all elements of B that also belong to A), but no other elements.
For explanation of the symbols used in this article, refer to the table of mathematical symbols.
- carrier frequency level measuring setup
- carrier frequency level meter
- carrier frequency measuring bridge
- carrier frequency oscillator
- carrier frequency photography
- carrier frequency pulse
- carrier frequency remote control equipment
- carrier frequency repeater
- carrier frequency repeater equipment
- carrier frequency shift
- carrier frequency signal transmission
- carrier frequency stability
- carrier frequency synchronization
- carrier frequency telegraph terminal
- carrier frequency telemetering equipment
- carrier frequency telephony
- carrier frequency terminal equipment
- carrier frequency tolerance
- carrier frequency wire broadcasting
- carrier function
- carrier gas
- carrier gas diffusivity
- carrier gas flow
- carrier gas flow control unit
- carrier gas inversion