under discussion 正在討論中under development under developing under developed under determined system [電子、通信與自動控制技術(shù)]欠定系統(tǒng)under debate 在爭論中under cut under current under cover 隱藏著；秘密地under correction 有待改正under control 處于控制之下；情況正常under contract 根據(jù)合同under construction 在建造中；正在施工之中under consideration 在考慮之中的under compound [交通運(yùn)輸工程]欠復(fù)勵[機(jī)械工程]低復(fù)under coat under class under charge 充電不足under certain circumstance adv. 在某種情況下under bracing [土木建筑工程]下支撐