1.   A laser device scans the information, and a processor interprets the data as video and audio signals.

2.   A special laser device then scans the cell walls of any bacteria found in the sample to compare it with DNA patterns of known biological agents.

3.   Mounted on a mobile track, the device scans the interior of trucks by projecting radioactive rays through their sides.

4.   The device scans fingers plus the tops and sides of the hand with a video camera, then converts the data with compression algorithms.

5.   A special device will scan written text for transmission to Colombo, the Sri Lankan capital, and overseas.

n. + scan >>共 154
eye 6.90%
camera 4.39%
machine 3.13%
computer 2.82%
program 2.51%
bone 2.19%
trader 2.19%
customer 1.88%
police 1.88%
worker 1.88%
device 1.57%
device + v. >>共 461
be 26.54%
have 4.07%
go 3.87%
explode 3.42%
use 2.69%
work 2.24%
allow 1.66%
help 1.55%
come 1.52%
fail 1.28%
scan 0.17%
每页显示:    共 5