ground frame

名词 n.
中文释义

英文释义

名词 n.
  1. A lever frame controlling the operation of points and/or signals which is installed at ground level.
    — Before long, this box will be installed nearer Grosmont (NYM) level crossing to permit control of the crossing gates (presently hand-worked) and to replace the eight-lever ground frame which currently operates the pointwork.

词形变化

ground frames plural groundframe alternative
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