Acid Leak-off

Acidizing Fluid Leak-off

formation leak off test

gland leak-off condenser

gland leak-off steam condenser

gland leak-off test

injection-and-leak-off-system

intermediate leak(-)off

leak off coefficient

leak-off pipe

leak-off seal inspection

leak-off valve

Preventing Leak-Off and Spill-Out

allowable shut-off time of fast shut-off valve

fall off [= bear off]

hang off [= stop off]

Off beat takes off

Off-Line Handwritten Chinese Character Recognition (off-line HCCR)

off-line trusted third party (off-STTP)