() -________________________________________
.
.
, .
1 2 :
1 = 670 , 2 = 760 - 1520 ;
a1 = 672 , 2 = 762 - 1524 .
.
() - ______________________________________________________________________________.
.
- __________________________________________________________
______________________________________________________________________________
1. 1745 _____________________________________________________________
2. 1920
_____________________________________________________________
3. __________________________________________________________
4. ?
________________________________________________________________
: .. .
. 135-138.
:
1. ,
.
2. 1:50 .
3. .
..
7
: 1:2000 ,
: ,
: 2
:
.
:
1.
2.
3.
4. α
5.
:
| , | , | ||||||
| 1 | 2 | 3 | 4 | ||||
| 50 | 1/9 | 5,1 | 5,1 | 5,1 | - | ||
| 65 | 1/9 | 5,3 | 5,3 | 5,2 | 5,1 | ||
| 65 | 1/11 | 5,3 | 5,0 | 5,1 | - | ||
| 50 | 1/11 | 5,2 | 5,2 | 5,3 | 5,5 | ||
| 50 | 1/9 | 5,5 | 5,5 | 5,5 | 5,5 | ||
| 65 | 1/9 | 5,5 | 5,5 | 5,5 | - | ||
| 50 | 1/18 | 5,5 | 5,5 | - | - | ||
| 50 | 1/9 | 4,8 | 5,0 | 5,1 | - | ||
| 65 | 1/18 | 5,3 | 5,3 | 5,3 | - | ||
| 65 | 1/9 | 5,4 | 5,2 | 5,1 | 5,0 |
|
|
|
:
1.
.
:
- : ℓ = / sin α = b + d +
__________________________________________________________
- : = N
__________________________________________________________
: d = / sin α (b +)
__________________________________________________________
- : = R/ 2 N
__________________________________________________________
- : L = + +
__________________________________________________________
1.3
1:2000.
2.
:
- : ℓ = / sin α = 2 b + d
__________________________________________________________
- : = N
__________________________________________________________
- : d = / sin α (b + b)
__________________________________________________________
- : L = 2 +
__________________________________________________________
2.3
1:2000.
:
- : ℓ = / sin α = 2 b + d
__________________________________________________________
- : = N
__________________________________________________________
- : d = / sin α (b + b)
__________________________________________________________
- : L = + +
__________________________________________________________
3.3
1:2000.
4. α
4.1.
= N
__________________________________________________________ __________________________________________________________
4.2. :
= R/ 2 N
____________________________________________________________________
4.3. :
ℓ = / sin α = b + d +
ℓ = / sin α = b + d +
____________________________________________________________________
____________________________________________________________________
4.4. :
d = / sin α ( + b)
d = / sin α (b + )
____________________________________________________________________
____________________________________________________________________
4.5. :
L = + + + + +
____________________________________________________________________
4.6.
α 1:2000.
5.
|
|
|
5.1.
= N
__________________________________________________________ __________________________________________________________
5.2. :
= R/ 2 N
____________________________________________________________________
5.3. :
ℓ = / sin α = b + d +
____________________________________________________________________
____________________________________________________________________
5.4. :
d = / sin α (b + )
____________________________________________________________________
____________________________________________________________________
5.5. :
L = + + + + +
__________________________________________________________________
1. ____________________________________
_______________________________________________________________
__________
2. __________________________________________________
_______________________________________________________________
_______________________________________________________________
3. ________________________________
_________________________________________________________________
_________________________________________________________________
4.
____________________________________________________________________
5.
______________________________________________________________________
: .. ,
.141-148.
:
1. .
2. 1: 2000.
3. .
..
8
:
( ).
:
,
