English Dictionary

running rail

noun

(rail transport, usually in the plural) One of the two rails of a railway track with which the wheels of a train make contact. / (horse racing) A fence which marks the inside edge of a racecourse.

The running rail is an essential component of rail transport.

意味（1）

(rail transport, usually in the plural) One of the two rails of a railway track with which the wheels of a train make contact.

In order to reduce noise to a minimum, the running rails have been welded into 315 ft. lengths.

意味（2）

(horse racing) A fence which marks the inside edge of a racecourse.