block system
Noun
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Noun
block system (plural block systems)
- (rail) On railways, a system by which the track is divided into sections of three or four miles, and trains are run by the guidance of electric signals so that no train enters a section or block before the preceding train has left it.
- (maths) Given a group G that acts on a set X, a partition of X that is G-invariant.
This text is extracted from the Wiktionary and it is available under the CC BY-SA 3.0 license | Terms and conditions | Privacy policy 0.002