根据新协议，一年内，伊朗将向土耳其输送1200千克储备低纯度浓缩铀以交换其120千克浓缩铀（纯度约20%）用以生产药用（特别用于癌症的治疗）同位素的研究用反应堆。
Under the new deal, Iran says it would send 1,200 kg of its stockpile of low-enriched uranium to Turkey.
综述了化学交换精馏法分离同位素硼10的技术进展。
Advances in boron10 isotope separation by chemical exchange distillation are reviewed.
利用增量方法和同位素交换技术，对角闪石族矿物的氧同位素分馏进行了理论计算和实验测定。
Oxygen isotope fractionation in amphiboles was determined by theoretical calculation using the increment method and by experimental measurement using isotope exchange technique.
概述了同位素封闭体系内的矿物氧扩散和同位素交换机制及其在地质速率计上的应用。
Oxygen diffusion in minerals and accompanied isotopic exchange inclosed systems are discussed with special application to geospeedometry.
稀有气体同位素组成研究证实CCSD及其周围HP-UHP变质岩曾经历的板块俯冲和折返过程非常快速，俯冲过程中的壳幔物质交换未能充分进行。
The noble gas isotopic compositions imply that the subduction and exhumation of the CCSD HP-UHP rocks may be very quick, thus the mantle-crust interaction and isotopic exchange might be very limited.
金属矿物硫同位素组成在同位素交换平衡条件下属中低温环境沉淀。
The s isotopic components of metal minerals indicates a mid-low-temperature environmental precipitation under the condition of isotopic exchange equilibrium.
固体表面吸附的氢同位素具有自发与气相氢同位素交换并达到某种程度平衡的性质，这种交换作用在金属氢化物表面同样存在。
The hydrogen absorbed on solid surface can exchange with its isotopes in gas phase until equilibrium achieved. Such characteristic exists in metal hydride-hydrogen system, too.
采用二次离子交换法分离天然样品中的硼是一种更有效的从天然样品中分离和纯化硼的分离方法，因而，也进一步提高了硼同位素组成测定的测量精度。
The results showed that boron separation by the two-step ion exchange for isotopic measurement was more effective. It achieved high accuracy of isotopic measurement of boron.
采用二次离子交换法分离天然样品中的硼是一种更有效的从天然样品中分离和纯化硼的分离方法，因而，也进一步提高了硼同位素组成测定的测量精度。
The results showed that boron separation by the two-step ion exchange for isotopic measurement was more effective. It achieved high accuracy of isotopic measurement of boron.
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