Assertion: wave's pattern | /r/HasProperty | observed
Facets:
value: during the time
type: TEMPORAL
Source sentences:
text: Two identical waves which consist of a narrow spectrum of frequency waves of finite duration, will give a series of fringe patterns of slightly differing spacings, and provided the spread of spacings is significantly less than the average fringe spacing, a fringe pattern will again be observed during the time when the two waves overlap.