䓹ܵЇ(gu)ѽ(bio)(zhn)ʹÉ50-70ꡣ䓹ܵһNSo(h)ͼӹ̷ܶÑ(du)winding 䓹ܵă(yu)߀](mi)ȫ˽(du)䓹ܵڇ(gu)(ni)đ(yng)ìF(xin)Ҳȱ˽⡣߀ڪqԥx䓹ܵЇ(gu)ǻA(ch)O(sh)ʩO(sh)(gu)m҂ԼҲ(gu)c(gu)δ(li)(du)@Nܲĵ(hu)ӡ

䓹ܵԘ֬wwS(qing)(jng)ˇƳɡ@Nܵg©ȃ(yu)c(din)p(qing)ȸSo(h)ʹÉL(zhng)O(sh)Ӌ(j)ԏ(qing)wСbCϳɱ͵c(din)ɏV(yng)ʯˎ켈нoˮSˮ̎ˮݔɵVИI(y)ݔҺw͚wܵ

˱Ca(chn)Ʒ|(zh)䓹ܵ(zh)ʲôӵĘ(bio)(zhn)ʹÉжL(zhng)
I .P(gun)䓹ܵy(c)ԇ(bio)(zhn):
1.wS(qing)ϹܶˮʧЧԇ(yn):GB/T 5349
2.wS(qing)ϹSԇ(yn):GB/T 5349
3.wS(qing)Ϲƽаdԇ(yn):GB/T 5349
(j)һҪwʹÉ50
ڶ䓹ܵSӹ̷
䓹ܵSo(h)ͼӹ̷:֏(f)ڹܵȱݺӵ䓵ď(qing)溸ҪmСĆc(din)ȱݣa(b)Ƭڶc(din)gС^(q)egӷă(yu)c(din)dzɱ1990ԁ(li)wSޏ(f)g(sh)(yng)䓹ܡf(xi)ͬӏ(qing)wSϵĸߏ(qing)ԺܵճӘ֬Ϳ֏(f)˹ܵʹÏ(qing)
䓹ܵ˺ܵP(gun)]ͭh(hun)¶L(fng)U(xin)ɱںӺbAˇ֮gw֮Dze(cu)(f)ޏ(f)g(sh)صĹܵ˾V䓹ܵķ~Ȼܵ䓹ܵT(yu)(sh)ɏV(yng)ʯˎ켈нoˮSˮ̎ˮȼ?x)\(yn)ݔVI(y)ИI(y)ݔҺw͚wܵS(du)J(rn)ɣ䓹ܵķ~Խ(li)Խ