coach screw

名词 n.
中文释义

英文释义

名词 n.
  1. A large metal wood screw with a head that takes a spanner. Commonwealth,Ireland,UK
    — In turnouts the special fittings are secured by coach screws. Portable air compressors with special tools for boring holes and driving the coach screws save both time and labour.

词形变化

coach screws plural
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