也许你应该尝试一些拼写变化:
irrigation requirements » irrigation equipment, nutrition requirements
requirements based » requirements a
based provision » based precision, based revision, based provisioning
array sharing » array string, arrays bearing, way sharing
array imaging » arrays imaging, airway imaging, ray imaging
array arcing » array forming, array probing, array using

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: irrigation requirements based provision ((((array arcing) OR (array sharing))) OR (array imaging))~.
• Adding a wildcard symbol may retrieve word variants: irrigation requirements based provision ((((array arcing) or (array sharing))) or (array imaging))*.