Closed circuit density control instrument
作者： Eugene A. Glassey
DOI:
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摘要:
lens.org 参考文章(4)
L V Henry, Anti-freeze gauge for automobile motors ,(1956)
Johnson Clarence, Force measuring instrument ,(1965)
Ewald Philip, Specific gravity recording system ,(1940)
James A Tilden, Art of measuring fluids. ,(1902)