under-effected 影響不足

under-dispersion 低擴散

under-cut 下切球

under-current circuit breaker [動力與電氣工程]低電流斷路器欠流斷路器

under-current 低電流

under-cooling 過冷度

under-constable 低級警察

under-commutation 欠換向

under-coating

under-chassis 機腳,起落架,底盤

under-capitalization 資本過少

under-buy [法] 低價購買

under-burnt lime [土木建筑工程]欠火石灰

under-assigned adj.派工不足的

under-annealing n.不完全退火

under-ageing n.硬化不足

under-actuated 欠驅動

under-active adj.活化不足的；激活不足的

under-achiever (n.)

under-absorbed overhead [會計] 少分配制造費用