Assertion: microscope's objective | /r/HasProperty | changed for one of higher or lower power
Facets:
Source sentences:
text: In practice, once the microscope has been set up, the condenser and its diaphragm setting can be largely forgotten until the objective is changed for one of higher or lower power.
text: In practice, once the microscope has been set up, the condenser and its diaphragm setting can be largely forgotten until the objective is changed for one of higher or lower power.