under_frequency and under_voltage unloading
014 Center Under Ministry of Aerospace Industry
2-tractor with 1-guiding 3-wire stringing under tension
A country under the rule of law
a free society under the rule of law
a train of thought to bring it under control
a two-tiered system under a multiple tiers
above and under ground drainage
abrasive-wear under high temperature
absorption spectra under high pressure
absorption under low temperature
absorption under negative pressure
accelerated life test under constant stress
access into working chamber under compressed air
accomplice under duress
Acid leaching under pressure