行こう動どう半はん径けい

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Meanings

1

radius of action; combat radius

yojijukugo (four-character idiom)military

Military term for the maximum distance a vehicle or unit can operate from its base and return without refueling.

この戦せん闘とう機きの行こう動どう半はん径けいは約やく800キロだ。
This fighter's combat radius is about 800 kilometers.

2

sphere of activity; range of activity

yojijukugo (four-character idiom)

Extended figurative use for the area or scope within which a person or organization operates.

彼かれの行こう動どう半はん径けいは都と内ないに限かぎられている。
His sphere of activity is limited to central Tokyo.