Sentence examples for has frequently occurred from inspiring English sources

Failure of bolted connections has frequently occurred during fire events.

Lost circulation has frequently occurred during drill-in, completion and test process.

History has shown us repeatedly the deadly consequences of ending anti-malaria programmes prematurely – huge resurgence has frequently occurred when funding of local projects is ended in Africa.

which is a terminating form of the confluent hypergeometric function F 1 1, has frequently occurred [[8], p.268].

We thus believe that these near-surface tectonic structures are long-lived features, and coseismic slip partitioning behavior has frequently occurred in the past, in particular since the last caldera-forming eruption.

Gene duplication has frequently occurred in the evolutionary development of anthocyanin-activating MYB genes.

In recent years, unconventional emergencies that have generated widespread concern in the society have frequently occurred.

Large outbreaks caused by EV71 have frequently occurred in Asia-Pacific region.

Though many positive results have been reported, inconsistent findings and non-replication of previous results have frequently occurred.

Strikingly, from sport to comedy, these screen-smashings have frequently occurred in mainstream formats, whereas, in theatre, a broken fourth wall was (after Shakespeare) most often associated with experimentalism.

Observation records and other historical documents indicate that large tsunamis have frequently occurred in this region (e.g., Utsu 2004; Fig. 1).