Liquefying hydrogen with the aid of liqu
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H.M Gijsman; P.G.H.C van Tuijl
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Article
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1971
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Elsevier Science
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English
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or three times in opposite directions, and fixed on to it. The lower loop is wound round the bobbin several times (the bobbin can be dispensed with/if the specimen is formed into a sufficiently accurate cylinder) so that it fits tightly into the recess on the teflon end piece. The rotation of the ve