bearing bush upper half
bearing shell upper half
bush for front bearing upper half
bush for rear bearing upper half
counter offsetting upper half auxiliary airs progressively
increasing counter offsetting upper half auxiliary airs progrsessively
half round incision of upper hulim line
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
half - cantilever half - support