1999-20001aNo.1No.5Ø168×16HPdH/dx1bHPHP2aNo.5HP12HP-2bNo.52c(HP=0)HP=0HP=0а)b)1No.5a-HPb-HPa)b)c)2No.53HPdH/dx3CC140N200-127-535HPTSC-1M-490°4.234aC50-90/’1,2-I(5)No.15No.45HPHPdH/dxNo.154bHPNo.19HPNo.45dH/dxNo.19a)b)4C50-90/1,2-INo.15№45(a)No.19(b)5HPHPdH/dxa)b)5№13(a)№16(b)HP6HPHPdH/dx67No.2HG/670-137-YM16№66№115HPNo.66No.115a)b)7No.2HG/670-137-YM16№66a№115(b):100037