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ʯ人ȦijУʯλںʡϲϰ1850ƽǧס˿2005ȫ˿Ϊ252.8ˣгס˿Ϊ239.9 ˣָסа˿ڣ˿2000ȫ˿ղ˿247.75 ȣ5.05ˣ2.04 %ƽ 1.01ˣƽ0.41% ҪΪ塣ԭΪұʯҤʯۡʿɿҵ1948ʯȡʯҤʯ1950ʡϽʯСʯһ˵ĿұУԲɿұΪСϾ۱衱ʢͭúʯʯḻ ұɫ˾й֮ͭһ۱Ϊͳ㡣йͭĻķԴ֮һѷұͭɽַͭҪʤɽƶɽźȡ | |||
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ϰװƬҪһϱ̡롢еȳƷ㷺ӦʳƷˡˮϡƷҵİװŹװȳƬ;ҲԽԽ㷺Ҳӣǰá ŹҶԻӣӦġƬߡѾܹɹгӦ͵ġƬġáϡġƬġΪǹעһ㣬ҲΪµġ㡱ΪʳƷںͻСܵƬġѳΪҵĿꡣ
ϰװƬĵķѹӷҪPVCPVDCƬģһǼBOPSEPSPETPPHIPSƬġᵽƬҪָáTͻͷѹװãȡȳͰװƷƬġ ƬĻҵŰװƬĵķչҲƳȽúµĻʮƬƬĻҵͬҲƬҵ巢չˮƽµƬļӹµԭȽ豸ϵõֵķӡ YXP-670ϵƬĻԭתȨ / |
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