proton-recoil counter

例句：

1. 1. The proton-recoil counter is used to measure the strength of nuclear magnetic resonance signals.
   质子回旋共振计数器用于测量核磁共振信号的强度。
2. 2. In the field of nuclear physics, the proton-recoil counter is a crucial tool for studying the properties of nuclei.
   在核物理学领域，质子回旋共振计数器是研究核性质的关键工具。
3. 3.The proton-recoil counter has proven to be an invaluable asset in our research on nuclear reactions.
   质子回旋共振计数器在我们的核反应研究中证明了其无可替代的价值。