美国在内华达测试场进行了一项非核爆炸实验，以提升对低能量爆炸的检测能力。
The US carried out a non-nuclear explosive experiment at its Nevada test site to improve detection of low-yield blasts.
此举是在对“分离式”爆炸、中国核武指控以及军备控制谈判的重新审视之际进行的。
The exercise comes amid renewed scrutiny of decoupled explosions, Chinese nuclear allegations and arms control talks.
美国国家核安全管理局（NNSA）周三在内华达国家安全场所进行了一项地下非核化学高爆实验，能源部表示。
The US National Nuclear Security Administration (NNSA) conducted a subsurface, non-nuclear chemical high-explosive experiment on Wednesday at the Nevada National Security Site, the Energy Department said.
该实验旨在提升美国检测低能量核爆炸的能力，尤其是能够降低地震监测效果的“分离式”爆炸。
The experiment was aimed at improving the United States' ability to detect low-yield nuclear explosions, particularly "decoupled" explosions that can reduce the effectiveness of seismic monitoring.
能源部称，测试在第12区的P隧道使用化学高爆炸药和放射性示踪剂进行。
The test was conducted in the P Tunnel in Area 12 using chemical high-explosives and radiotracers, according to the Energy Department.
实验收集的数据将用于验证科学模型并完善美国核爆检测所用的算法。该实验是在美国对中国涉嫌核活动的担忧之中进行的。
Data gathered during the experiment will be used to validate scientific models and refine algorithms used in US nuclear explosion detection efforts. The experiment comes amid US concerns over China's alleged nuclear activities.
今年早些时候，华盛顿指责北京在2020年6月进行了一次秘密核试验，并声称该试验采用了降低地震特征的方法。
Washington earlier this year accused Beijing of conducting a secret nuclear test in June 2020, alleging that the test involved methods designed to reduce its seismic signature.
中国否认此指控为“完全没有根据”，称这是“为恢复美国核试验制造借口”的企图。
China rejected the allegation as "entirely unfounded", saying it was an attempt to "fabricate excuses for resuming" US nuclear testing.
美国还呼吁制定更广泛的军备控制条约，以应对对核爆检测和监测的担忧。
The United States has also called for a broader arms control treaty as concerns grow over the detection and monitoring of nuclear explosions.