ONT(=o-nitrotoluene(o-methyl nitrobenzene)) 邻-硝基甲苯Onthophagus gibbulus小驼嗡蜣螂ontaminated sediments受污染沉积物ontinuous fermentation连续发酵ont-of-doors drying露天干燥onthe-bottom gravimeter海底重力仪Ont-ils des enfant?弘井ont-to-one transformator等压变压器ONTM Open Nested Transaction Model开放的嵌套事务模型