Wade-Dahl-Till valve
词源说明
Developed in 1960-62 by hydraulic engineer Stanley Wade, author Roald Dahl, and neurosurgeon Kenneth Till, after Roald Dahl's son Theo was severely injured.
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Developed in 1960-62 by hydraulic engineer Stanley Wade, author Roald Dahl, and neurosurgeon Kenneth Till, after Roald Dahl's son Theo was severely injured.