FIG. 1
α
B
90 °
205
90 °
190
90 °
185
90 °
170
110°
250
FIG. 2
2
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A
D
A
C
0
415
209
50
415
135
100
395
159,5
150
372
278
0
365
287
B
C
C
B
D
A
0
466,5
90
250
50
463,5
90
231
150
100
457,0
90
250
150
446,0
90
260
0
416,5
100
256
50
414,0
99
260
200
100
407,0
98
268
150
396,0
90
240
0
366,5
110
275
50
364,0
110
274
250
100
357,0
100
245
150
346,0
100
230
C