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abstraction > mathematical concept > number > quantity > time > hold-time
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hold-time
subjectfact 
hold-timehas definition The time taken to use up all the liquid cryogens, like LN2, in a cooled CCD cryostat.has source: McLean, I.S. 1997 Electronic Imaging in Astronomy, Wiley, 2001-09-27 09:33:25.0
is an instance of time2001-09-27 09:33:25.0
timehas unit time unit2001-09-27 09:33:25.0
numberhas value2001-09-27 09:32:57.0