| 摘要 |
FIELD: transport. ^ SUBSTANCE: proposed device comprises chamber, flexible linkage elements, valve elements, fittings and valves of fittings. Note here that said chamber makes a through-flow chamber with stop to arrest flow in said chamber. Note also that said stop may clear the flow passage. ^ EFFECT: reduced capital costs due to decreased nomenclature of chambers and their unification. ^ 1 dwg |
