Activity of enzymes at low temperatures
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J.S.H.
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Article
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1933
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Elsevier Science
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English
โ 62 KB
The same applies to all door knobs and electric light switches, even the ornaments, cigarette boxes, ash trays and lamp shades. One firm has already designed machinery for the production of vinylite doors. They not only will be better than the usual wooden door from the standpoint of appearance, wa