Assertion: railroad's track | /r/HasProperty | lengths of welded rail
Facets:
value: as long as several km
type: OTHER
Source sentences:
text: The number of joints is being reduced to improve track and rolling stock operations, resulting in jointless track composed of lengths of welded rail as long as several km (up to 800 m is customary in the USSR).
text: The number of joints is being reduced to improve track and rolling stock operations, resulting in jointless track composed of lengths of welded rail as long as several km (up to 800 m is customary in the USSR).