Assertion: mirror galvanometer | /r/ObjectUse | used in scientific instruments
Facets:
value: before reliable, stable electronic amplifiers
type: TEMPORAL
value: extensively
type: DEGREE
Source sentences:
text: Mirror galvanometers were used extensively in scientific instruments before reliable, stable electronic amplifiers were available.
text: Mirror galvanometers were used extensively in scientific instruments before reliable, stable electronic amplifiers were available.
text: Mirror galvanometers were used extensively in scientific instruments before reliable, stable electronic amplifiers were available.
text: Mirror galvanometers were used extensively in scientific instruments before reliable, stable electronic amplifiers were available.
text: Mirror galvanometers were used extensively in scientific instruments before reliable, stable electronic amplifiers were available.
text: Mirror galvanometers were used extensively in scientific instruments before reliable, stable electronic amplifiers were available.