Hello I have add this code in under the sale module sale -> i18n -> nl.po

but it's not translate in the report/pdf file

#. module: sale
#: report:sale.order:0
msgid "Disc.(%)"
msgstr "Krt. (%)"

#. module: sale
#: view:sale.report:0
#: field:sale.report,price_total:0
msgid "Total"
msgstr "Totaalprijs"

#. module: sale  
#: field:sale.advance.payment.inv,qtty:0
#: report:sale.order:0
#: field:sale.order.line,product_uom_qty:0
msgid "Quantity"
msgstr "Hoeveelheid"

please help