

l(f)r(sh)g2020-04-13 2317˞g[
ͿzºM(jn)вܺeӘ֬ĺƣ (j)L(zhng)ڌ(sh)`(jng)(yn)f͑мӜؗl40-50犼ɝM z¹̻ėlz»dzҎ(gu)Ҏ(gu)⣩24 r£sҪ90犵Ĺ̻r(sh)gǰM(jn)И֬eӣӱϩÛz(hu)γz°ƤѵĬF(xin) עͬģ(du)z¹̻ٶҲӰ푵ģ(f)ϲģߡģضȶDzһӵ ضȺʹӰz¹̻ٶȵĺc(din)ضԽԽ̻࣬Խ֮Խ
l(f)r(sh)g2020-04-13 2933˞g[
O(sh)ֱdL(zhng)ȞhS =3.14*d*hԭܵչ_һ(g)L(zhng),L(zhng)ǹܵL(zhng),AL(zhng), (j)L(zhng)ˌóe.
l(f)r(sh)g2020-04-13 2212˞g[
䓃(ch)ʬF(xin)B©ԭͽQkʲôʲô(hu)ʬF(xin)@Nr\(yn)õѱض־Ϳܱ^nãwĽoۂBһ@(g)}
l(f)r(sh)g2020-04-13 2440˞g[
䓃(ch)ɫ Ѓ(yu)ܣ䓵ıһ1.8-2.1䓵1/4-1/5TFϵď(qing)ȶ䓵ğÛϵ(sh)c䓴wஔ(dng)(do)ϵ(sh)ֻҪ䓵0.5%
l(f)r(sh)g2020-04-13 5256˞g[
䓣FRPQGFRPwS(qing)һָòwS(qing);h(hun)֬cȩ֬wԲwSƷ(qing)ϵ(qing)Q^鲣wS(qing)ϣQ鲣ͬ䓻ʹõĘ֬ƷNͬоh(hun)䓡ȩ֮e|(zh)pӲ(do)ܷ(wn)C(j)е(qing)ȸ٣gԴ䓲C(j)܇⚤
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