National Geographic manual 277 NE 0C ~ 40C +/- 2C -10C ~ 60C AAA AA/ AAA

277 NE

7

0°C ~ 40°C +/- 2°C -10°C ~ 60°C

x AAA (

8

8.1

24

.AA/ AAA).

,

,

.

8.2

,

.

8.3

, .

,

(

.