OOB=off-off-Broadway 纽约第三戏剧界OOabbr.面向对象的(=Object Oriented)Oozing nanometer diamond渗纳米金刚石oontrolled amplification受控放大oontrol of cable tension索力控制Oocyte of Xenopus Laevis爪蟾卵母细胞oolite-bearing micrite含鲕粒微晶灰岩oosperm in litro storage受精卵体外保存Oort-Spitzer mechanism奥尔特-施皮策机制oower line communication电力线通信oonstruction supervision施工监控OOW officer of the watch值班驾驶员