共 8 条
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- [2] ACKERMANN RA, 1970, ECOM3245 RES DEV TEC
- [3] Gifford WE., 1966, ADV CRYOGEN ENG, V11, P152
- [4] GIFFORD WE, 1961, PROGR CRYOG, V3, P51
- [5] GIFFORD WE, 1960, 10TH P INT C REFR, V1, P100
- [6] GIFFORD WE, 1961, ADV CRYOGEN ENG, V6, P82
- [8] 1969, CRYOGENIC DATA CHART