<http://webisa.webdatacommons.org/82104953>	<http://www.w3.org/ns/prov#value>	"However, due to factors such as temperature changes which can affect the shape of the tubing, and the unpredictability of the interaction between the tubing and the clamp, such systems have not proven to be very accurate in controlling and maintaining a prescribed fluid flow rate over an extended period of time." .
<http://webisa.webdatacommons.org/82104953>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
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<http://webisa.webdatacommons.org/prov/388800796>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/82104953> .