| 摘要 |
1372283 Gas storing L'AIR LIQUIDE SOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 12 Jan 1972 [12 Jan 1971] 1529/72 Heading F4P [Also in Division G1] In a device for measuring the level of a liquefied gas the gas pressure with a tube 10, immersed in the liquefied gas, is compared with the pressure of gas above the level 58 of the liquefied gas by comparison with the liquid levels in the arms 44, 48 in a "U"-tube. Liquefied gas is absorbed in a permeable mass 20 and any surplus liquid is poured into a heat insulated receptacle 56 on removal of a cover 38. |
