Hungarian term (edited): refrakci�s felv�tel

A módszer pedig refraction imaging - refrakciós képalkotás.

Through the northern Los Angeles basin and San Gabriel Mountains, shots were spaced 1000 m apart, and the seismographs were spaced 100 m apart to produce both reflection and refraction images of the crust.

http://www.agu.org/sci_soc/eisfuis.html