Outward Foreign Direct Investment对外直接投资 Office of Foreign Direct Investment (US Department of Commerce; now defunct)办公室的外国直接投资(美国商务部;现在已经死了) Optical Frequency Domain Imaging光频域影像 Other Forces Disability Investigations其他部队残疾的调查 Overseas Foreign Direct Investment外国直接投资 Originating Financial Depository Institution源自金融保管机构