An illocutionary act isthe act preformed by or as a result of saying, the effects on the hearer.

文献：Guiding of terawatt laser pulses in preformed plasma channels. Nikitin, Sergei Petrovich (Univ. of Maryland, College Park, MD, USA). 160 pp. Avail. UMI, Order No. DA9925820 From: Diss. Abstr. Int., B 1999, 60(4), 1682 (English) 1999.以下说明正确的是：