time-of-flight neutron spectrometer

例句：

1. 1. Thisinstrument is used to measure the time of flight of neutrons in a sample.
   这个仪器用于测量样品中中子的飞行时间。
2. 2. The time-of-flight neutron spectrometer was used to detect trace amounts of radioactive material in the soil.
   时间飞行中子光谱仪被用来检测土壤中的放射性物质的微量。
3. 3. The time-of-flight neutron spectrometer was used to study the properties of materials under high pressure.
   时间飞行中子光谱仪被用来研究材料在高压下的性质。