2 l23 10.00 2(1) u(2) (4)(5)(6) (7) (8) (9) (10) (11) 3(1) (2) (3) (4) 1 2 m33 4 56 78(gb/t50353-2005)970%lo1e#15 % %2 %3%4 %56 78117 2 3000 1 _%2(jgj131-2001)(jgj59-99)(jgj80 91)34 524 l 2 3 4 56503 300/789 l(1)(2)15 (3)(4)(5) (6)(7) (8)(9)2(1)(2)(3)(4)500-1000(5)(6) (7)(8)(9)300-500(10)500-1000/(11)500-1000(12)500-1000 (13)1 2 3 310000071 2 3 l24200 mm2 3 l2310.006)()2(1) u(2) (4)(5)(6) (7) (8) (9) (10) (11) 3(1) (2) (3) (4) 1O 2 m33 4
