carbide-tipped cut-off turning tool
demonstration unit turning-off
the turning off load automatically
Turning off adapter booster
zero-voltage turning off
Cutting-off tools for turning with clamp tips
time turning on and off
turning point laying off
wheel turning lathe not needing to take wheel off the bogie
allowable shut-off time of fast shut-off valve
Off-Line Handwritten Chinese Character Recognition (off-line HCCR)
off-line trusted third party (off-STTP)
voltage cut off or current cut off