Ngā hua rapu - (( engineering laboratory bureaus. ) OR ( engineering laboratories bureaus. ))~
Kāore tō rapu - (( engineering laboratory bureaus. ) OR ( engineering laboratories bureaus. ))~ - i ōrite ki tētahi rauemi.
Ka taea pea ētahi hua anō mā te whakakē i tō uiui rapu.
- Kā taea pea e ngā kupu AND, OR me NOT tō rapu te whakapōraru; tāpiritia he tohukī: "(( engineering laboratory bureaus. ) OR ( engineering laboratories bureaus. ))~".
- Mā te tāpiri tohu kārimākā e tikia atu ai pea ngā rerekētanga ā-rohe: (( engineering laboratory bureaus. ) OR ( engineering laboratories bureaus. ))*.