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زمینشناسی و معدن::
ژل سیلیکا
The creation of carefully monitored microclimates, regulated by the use of an agent such as conditioned silica gel, will extend the range of species which can be stored.
Silica gel, which is 'widely used in cons# vation for the control of RH, does not carry this m of specimen contamination.
Silica gel may be used to p vide tither a buffered or an enforced microclimate'
When enclosing specimens in a jar, it is not inconvenient to have a volume of silica gel equal to the volume of air.
Silica gel, which is chemically inert, dry to touch, and relatively inexpensive, is an acceptable RH buffer.
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