, , . 1920 . DIN, < >. VDE ( ).

. . , , < >, .

, NF. . (AFNOR). , , . , NF, . NF 75 % , , .

1989 . < >, .

1979 . < >.

1986 . < . 50598-86> .

1992 . < >, .

1993 . < >, 2002 < >.

<> (/ 2) < , >.

() () 1982 . <> , , ,

           

: = 5 : 0

?
!


: ? - !!!

, 1990- CMB ( ), 1974. , . FAQ .


  19.06.2018 - 11:12: - Conscience -> - _.
19.06.2018 - 01:53: - Chatter -> WHO IS WHO - - _.
17.06.2018 - 17:14: , , - Upbringing, Inlightening, Education -> - _.
16.06.2018 - 08:05: , , - Upbringing, Inlightening, Education -> .. - _.
15.06.2018 - 16:59: - Ecology -> - _.
14.06.2018 - 23:48: - Conscience -> : - _.
14.06.2018 - 23:44: , , - Upbringing, Inlightening, Education -> - _.
14.06.2018 - 23:02: - Economy and Finances -> - _.
14.06.2018 - 08:21: - Astrophysics -> - _.
13.06.2018 - 19:08: - Chatter -> - - _.
13.06.2018 - 18:25: , , - Upbringing, Inlightening, Education -> - _.
13.06.2018 - 17:00: - Experimental Physics -> - _.
Bourabai Research Institution home page

Bourabai Research -  XXI Bourabai Research Institution