eW(wng)䑪(yng)QՈʯϵ(yng)9~25cmռ80%20%鼉õʯ䉺ȑ(yng)30MPa.(jng)I(y)ٝͬDZ¶λϿɲUȲֵ
(yn)θW(wng)һͶMҪһͬƽͬӵĸ(ni)ͶεľW(wng)(ni)ͶϣԷֹgW(wng)Ƭ^qʯrӭˮͱˮҪӴaϏ^ʯ^յСʯλɷփɌӴaMW(wng)߶ÿͶϺȑ(yng)ڲ30cmˡ
ʯϵĸ߶ȿƣӑ(yng)߳W(wng)픲5~8cmڶӾW(wng)ϑ(yng)߳W(wng)픲3~5cmgüõʯԱCw(ni)ϵ܌ʯϑ(yng)ھW(wng)Ŀij߶ȣʯϔ[ƽ(wn)