bullhead rail

名词 n.
中文释义

英文释义

名词 n.
  1. A type of rail, most commonly used in the United Kingdom (now obsolescent), with a head and foot similar in cross-section, that is supported in cast-iron chairs and secured in the chairs by wooden wedges (known as "keys") or steel springs.
    — With second-hand bullhead rail almost unobtainable, the NYMR has been forced to go for new flat-bottom rail and orders are being placed; 58 fb rails are already en route to the railway.

词形变化

bullhead rails plural
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