noun, noun which may take the genitive case particle 'no'
straddle-beam type
Technical term used in engineering contexts, especially for monorails where the train straddles a single beam.
跨座式モノレールは、車両が軌道桁をまたぐように走行する。
A straddle-beam monorail runs with the vehicle straddling the track beam.
Compound of 跨座 (straddling) + 式 (type/style). The exact historical derivation is uncertain; it is a modern technical coinage.