Sentence examples for it is very difficult to recognize from inspiring English sources
In particular, if the primary receiver does not transmit any signals when the secondary devices perform sensing, then it is very difficult to recognize this primary hidden receiver.
Because of the relative small scale of single channels (min. depth being 10 meters), while dominant frequency of M oilfield seismic data is 40 Hz, it is very difficult to recognize a single channel.
Consequently, it is very difficult to recognize whether plants that occur in the same area and share a similar morphology have the same genotype.
Since plant shows little contrast with the rock matrix, the configuration of the pinnules is very difficult to recognize.
What's more, it seems be very difficult to recognize MULTIPLE CEMs in both systems.
"They are very difficult to recognize".
However, it is recognized that vaccinia virus is very difficult to neutralize to the extent required for such studies.
These small changes in the genome would be very difficult to be recognized using typical sequencing techniques.
"But it is very difficult.
