Iran has been under constant criticism for its nuclear program.
伊朗一直因为其核计划受到指责。
2
China's nuclear facilities and nuclear activities have all along been in safe and stable state and, in particular, the safety level of nuclear power stations has witnessed constant improvement.
中国的核设施、核活动始终保持安全稳定状态，特别是核电安全水平不断提高。
3
To obtain a constant gradient magnetic field outside unilateral nuclear magnetic resonance (NMR), optimal design method based on finite element method (FEM) and topology optimization is proposed.