何谓革兰氏阳性菌和革兰氏阴性菌？

Techincal Data

Display	2.4″ color glass display
Plate sizes	S0, S1, S2, S3, S4
Theoretical resolution (LP/mm, dpi)	40 (2,000)
Effective resolution (LP/mm, dpi)	22 (1,100 )
Greyscale (bit)	16 (65,536)
Weight (lbs/kg)	11.2 / 5.1
Dimensions (H x W x D inch/mm)	9.80 x 8.31 x 10.16 / 249 x 211 x 258
Standby function	Yes
Interfaces	LAN

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Technical data

Display	5″ Color-Touch
Plate sizes	S0, S1, S2, S3, S4
Theoretical resolution (LP/mm, dpi)	40 (2,000)
Effective resolution (LP/mm, dpi)	22 (1,100 )
Greyscale (bit)	16 (65,536)
Weight (lbs/kg)	11.68 / 5.3
Dimensions (H x W x D inch/mm)	10.75 x 8.31 x 10.16 / 273 x 211 x 258
Standby function	Yes
Interfaces	LAN, WLAN