| http://www.w3.org/ns/prov#value | - jet heads 421 arranged in the carriage 426 in the state in which all the respective arrangement directions of the nozzles 466 are roughly parallel to one another, accordingly, if for example the directions in which the nozzles 466 are arranged are substantially parallel, the region in which the nozzles 466 are arranged becomes wider, it becomes possible to discharge the filter element material 13
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