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5、00 4000 , . -, ( ) - . ., 250 500 1000 2000 4000 - 0,80 1,00 1,00 1,00 0,90 1 c97w5 5.15.3. - , .5.1 c97S c97S, 31704 . - c97S . -15;,0,30, 15 (. ). . - .5.2 c97 c97. c97 . 15 ; , 0,30 , 15 . c97=0c97=1,0 125 4000 (. ).3 317052011 . - .5.3 c97w c97w . c97w. c97w=0,70(). , -: - , , , .5.4 c97 c97w . , , , (. 2). - .1 ; 2 2 4 317052011 () c97w c97w .1. 0,05 , - 0,10. 250 , c97w= 0,60. . .2. , - , .1, c97w , . 0,25 500 , - .1252505001000200040000,400,600,600,600,500,200,350,700,650,600,55 .1 c97w(c97w= 0,60)1252505001000200040000,400,600,600,600,500,200,351,000,6