airflow in front upper plate
Permanent front upper teeth
the front upper plate of refrigerator
upper front elevation control valve port
Vortex—warm front shear
warm front cloud system
warm front precipitation
warm front type occlusion
warm-front-type occlusion
upper ridge (upper-level ridge)
upper trough (upper-level trough)
upper-air chart (upper-level charty)
water diversion from the upper Yangtze River in the south to the upper Yellow River in the north
coastal front coastal front trapped wave