B BACK COVER FRONT 后搭前
back cover concrete 封底混凝土
BACK COVER FRONT 后搭前
Back Cover Guard 后罩板
back cover package 后盖封装
back cover plate 后盖板
Failure to back cover 封底失败
lock bar of back cover 後盍开关锁
TV back cover 后机壳盖板
Top Cover, Bottom Cover, And Cover Board 顶盖、底盖、盖板
angles back to back 背对背角钢
Back filling at abutment back of Bridge or culvert 桥涵台背回填
back reaming and back transportation 反扩反输
back to back 背至背; 背靠背; 背对背
back to back arrangement 背对背配置
Back to Back Bus 背板总线
Back to back charter 转租合同
back to back connection 背向接线; 背对背连接
Back to Back Converter Station 背靠背换流站