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In this pressure test, a robotic arm presses down on the keys of the keyboard to make sure they don't break or come off easily.
This test "bends" the monitor to make sure the screen does not crack under external pressures.
This is one of the many drop tests Lenovo conducts. The robotic arm lifts the laptop to about 1.5 meters above the ground before releasing it to see if the device can withstand such shocks.