单词	head ring
释义	head ring 头环
随便看	fixed seating fixed section coupler fixed segmentation fixed sentence fixed sequence computer fixed-sequence manipulator fixed sequence manipulator fixed sequence of code fixed-sequence robot fixed sequence robot fixed-sequence wiring analyzer fixed sequential format fixed service fixed service satellite communication fixed set fixed set order fixed-set order fixed set point control fixed set-point control fixed setpoint control fixed set point control system fixed sets fixed setting fixed setting device fixed setting method fcls fclx fcly fclz fcme fcmn fcpf fcpj fcpp fcql 37874 37875 37876 37877 37878 37879 37880 37881 37882 37883