release cock

名词 n.
中文释义

英文释义

名词 n.
  1. A valve; one application was for opening train doors in an emergency.
    — Release cocks are fitted adjacent to each door both on the inside and outside of the car for use in an emergency, or for entry of depot staff.

词形变化

release cocks plural
0 次浏览 数据来源: Wiktionary