Field tests suggest that with some modest additional protection, smartphones are robust enough for use and special batteries can prolong time between charges.
In their first field test, five of the 101 decoys (which had similar size, weight and texture to real eggs) traveled significantly, potentially reaching consumers.
The field test results of the tunnel show that convergent deformation occurs in the tunnel section, and the deformation of the tunnel lining on the side of the surcharge loading is asymmetrically distributed.