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n4google.
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provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:169353598
rdf:type
prov:Entity
prov:value
A check valve 70 may be placed at the end of the containment layer 21 to allow for air, or other material that may reside in the unfilled containment layer 21, to escape as the containment layer 21 is filled with the buoyancy control material 30.
prov:wasQuotedFrom
n4:com
Subject Item
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