英和和英

形容詞

long-welded (not comparable)

1. (rail transport) Of rails for railway track, welded into longer lengths, usually before they are laid, to help eliminate jointed track.
   • 1961 March, “Talking of trains”, in Trains Illustrated, page 135:

     Rail joints affect it but do not in themselves cause bad riding, which may indeed be aggravated on long-welded track.

   • 1964 July, “Beyond the Channel: Switzerland: Long-welded rails”, in Modern Railways, page 64:

     About 20 per cent of the Federal Railways' main-line track has been laid with long-welded rail by the beginning of this year; further progress is hindered by the many curves.