long or short length

S type thermocouple with short length

short short story

adjusting focal length

focal aperture

focal length

focal length calibration

focal length of objective glass

primary focal length

secondary focal length

Aperture length

corneal lens lens

High carbon and high molybdenum high speed steel

High Carbon High Vanadium High Speed Steel

high vanadium and high cobalt high speed steel

short driving and short lining

anchorage length and lap length

ratio of pulse length to the total cycle length

span length of length bar

abnormal high temperatures and high pressures packet