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一、前言在玻璃钢液氦无磁杜瓦及无磁制冷机的研制中常常遇到低温玻璃钢的气密性问题。我们研制成功的玻璃钢液氦无磁杜瓦,其绝热性能达国际先进水平。然而,有关低温玻璃钢的气密性问题尚待进一步研究。尽管许多研究者关注玻璃钢的放气及其
I. Preface FRP helium non-magnetic Dewar and non-magnetic refrigerator are often encountered in the development of cryogenic FRP air tightness problems. We developed a successful glass fiber helium non-magnetic Dewar, the adiabatic performance of the international advanced level. However, the issue of the airtightness of FRP is for further study. Although many researchers focus on the deflated glass and its