under-secretary -general [經(jīng)濟(jì)學(xué)]付秘書(shū)長(zhǎng)under-seal synchronous pavement [交通運(yùn)輸工程]同步碎石下封層under-screen 擋泥板under-scan n.欠掃描；掃描不足under-sampling 欠採(cǎi)樣under-reserve [經(jīng)] 保畱追索權(quán), 儲(chǔ)備不足under-represented 未被充分代表的；代表名額不足的。under-relaxation factor [數(shù)學(xué)]低松馳因子under-reaction 弱反應(yīng)under-parhelion 下幻日under-nourishment n.營(yíng)養(yǎng)不足under-invoicing 少開(kāi)發(fā)票,開(kāi)低價(jià)發(fā)票under-invoice 不足額發(fā)票under-inflation 充氣不足under-heating 欠熱under-frame-shear-wall 底部框剪under-finished 脂肪少的under-excitation operation [能源科學(xué)技術(shù)]欠勵(lì)磁運(yùn)轉(zhuǎn)欠勵(lì)磁運(yùn)行under-employment (n.) under-employed (adj.)