背压式抽汽汽轮机 back pressure extraction turbine
背压调节器吸入压力调节阀蒸发压力调节阀 back pressure regulator
背压安全阀 back pressure relief valve
背压弹簧阀 back pressure spring valve
背压试验 back pressure test
背压脱扣 back pressure trip
背压式汽轮机 back pressure trubine
背压式透平机 back pressure turbine
背压阀 back pressure valve
止回阀 back pressure valve
向后串视 back range
反向电阻 back resistance
背压调节器吸入压力调节阀蒸发压力调节阀 back pressure regulator
背压安全阀 back pressure relief valve
背压弹簧阀 back pressure spring valve
背压试验 back pressure test
背压脱扣 back pressure trip
背压式汽轮机 back pressure trubine
背压式透平机 back pressure turbine
背压阀 back pressure valve
止回阀 back pressure valve
向后串视 back range
反向电阻 back resistance
反牵杆的反支索;后索 back rope
反牵杆的反支索 back rope
背面焊缝 back run
封底焊 back run
倒车运行 back running
向后推进;倒车 back running
向后推进 back running
顶风驶船 back sailing
顶风驶船顶风帆 back sailing
背锯 back saw
背镶金属的锯弓锯 back saw
锯 back saw
反向冲刷 back scour
后管板 back sheet
使船后退 back ship
背面 back side
过天顶测天;瞄准器 back sight
过天顶测天瞄准器 back sight
过天顶高度 back sight angle
退格 back space
退格符 back space?
退速 back speed
索尾插接 back splice
索尾插接索尾插结 back splicing
反向高度仪 back staff
右退左进 Back starboard give way port!
背撑牵条 back stay
回汽 back steam
逐步退焊 back step
逐步退焊法 back step method