Magnetic liquid level tank gauge
作者： Albert J Morschel
DOI:
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摘要:
lens.org 参考文章(3)
Stromberg Bror Wilhelm, Level indicator for liquidcontaining vessels ,(1948)
Shiroyan Haig, Leak indicator for gas-filled conductor cable ,(1944)
Thomas J Atkins, Liquid-level gauge ,(1938)