() any investment such as shares, bonds, options futures , etc. that is bought and sold in an organized system 票据；证券；信用工具◆We have had to replace our investments with lower-yielding instruments. 我们必须用低收益率的票据取代我们的投资。◆fixed-income instruments 定息票据◆equity/liquid/low-risk instruments 权益性工具；可变现的有价证券；低风险工具SYNfinancial instrument
a tool or device used for a particular task, especially for delicate or scientific work 器械；仪器；器具◆optical/precision/surgical instruments 光学／精密／手术器械
a device used for measuring speed, distance, temperature, etc. in a vehicle or on a piece of machinery （车辆、机器的）仪器，仪表◆the flight instruments 飞行仪表◆the instrument panel 仪表盘
() a formal legal document 正式的法律文件；文书◆an instrument of transfer (= that shows that property has been passed to sb else) 转让文书（说明财产已转让给别人）