Weiwei Shan and Wenjing Ding and Juan Ning and Chao He and Zijuan Wang, Study on Liquid Nitrogen Gravity Circulation Loop for Cryopumps in Large Space Simulator . journal = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology. August 2017, vol. 129(9). 1612 - 1617 [viewed 17 April 2024]. Available from: https://publications.waset.org/pdf/10008017.