例句與造句

1. Reflection seismograms record the reflection wave along the propagation path r from the source to reflector and back to the surface.
2. In 1950, Enders Robinson was a graduate student at MIT . He worked with others at MIT, such as Norbert Wiener, Norman Levinson, and economist Paul Samuelson, to develop the " convolutional model " of a reflection seismogram.
3. It's difficult to find reflection seismogram in a sentence. 用reflection seismogram造句挺難的