(sh)ľ(f)ϵذO(sh),(sh)ľ(f)ϵذO(sh)՚U˾hҌ҈F(tun),ذO(sh)ǰҪ_չz(w)ˬƽ治ƽ\(yn)Ƕpʯ_չƽǘӵ^ڹʩ
ůذO(sh)rڹůrO(sh)_չůؙzBˮȳ^509rgʮСr֮,ʹ溬ˮ10%,ԱCůһ_չ՚U˾O(sh)]_չůzأN؛(yng)Cذ|(zh)mذO(sh)rҪڵO(sh)һEPEĤXKĤ(yng)_ˮ뺵ƽop
ڷĤ̎Ҫغ5cm֮ϣzճ߅̎Ҫڵذ10-20 mm,So(h)(sh)ľ(f)ϵذ岻ܵĝΣĤ߂dzõչԜppذĄȣʹ(sh)ľ(f)ϵذ_ȸ
O(sh)(sh)ľ(f)ϵذr՚U˾(j)(jng)Uһ㲻(yng)ǣ(yng)|(sh)ľ(f)ϵذO(sh)ڵذcذĘg(w)D3ˮܷzĨoذDox߅Ҫ10 mmA(y)g϶ڵذq O(sh)iʽ(sh)ľ(f)ϵذtڿi̎zǶܲɷ־Ϳc܉g߀Ҫ10 mmA(y)g϶ֹذq
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