Assertion: honeycomb's porosity | /r/HasProperty | increased in recent years
Facets:
value: in order to reduce a pressure loss
type: PURPOSE
Source sentences:
text: Moreover, in recent years, porosities of partition walls of the honeycomb structure have been increased in order to reduce a pressure loss in treating the exhaust gas in the honeycomb structure and to treat the exhaust gas more efficiently (see Japanese Patent Application Laid-Open