ԸY(ji)ԭ(jng)(x)ӹּɣ伃ȸ_(d)99.999%ȸߣ(x)С0.5Ҫ(yng)ͿzطNմƷCÓÓմӷbϡطNI(lng)
(yng)I(lng):
1.ͿϡИI(y)ҪͲϴߜĤԡϻˮԵá
2.zƷƷĶ(xing)W(xu)磺(qing)ȡ˺ĥԡ@zƷ_ԡϻzƷcٽY(ji)ԣ߸
3.(jng)^̎Ķwc߷ӾۺY(ji)ϣĤ(qing)ĤĿʯԼͲϴԿߔ(sh)Ҫ(yng)ڹI(y)ἰzИI(y)
4.طNմɣCմÓÓմɵմɴմ.
5.a(chn)·^̫ܮa(chn)Ʒԭƹ⌧(do)wSܵĹW(xu)xԪĻA(ch)ԭV܊wͨӍW(xu)xȸ߿ƼI(lng)
6.ἃa(chn)ЙC(j)衢ٹ裨SiҪa(chn)ЙC(j)a(chn)Ʒȡȵİ댧(do)wԼ;ĺϽ댧(do)wF(xin)ͼ·øSiƳɵģҸSi߀a(chn)wҪԭ
7.a(chn)NĻA(ch)ԭ a(chn)ƽ岣ƷƿܵȣW(xu)wSx(do)늲 侀طNȵҪԭ