PPއ۞Vо
l(f)rg2020-10-13 g[
PPۇVоĽY(ji)(gu)wS(ni)wS(x)(ni)Ӿoܵĝu׃uoY(ji)(gu)صݶ^VγwVЧи߿϶߽{͉cPPۇVоɲϾ۱ϩ(PP)(x)wSӟpY(ji)ʹκλW(xu)ճτ^V1m-60mЧȥˮҸСwȲȫ۱ϩY(ji)(gu)W(xu)ԣmڏAЙC܄^VMĻW(xu)wSۼg(sh)܉M͑ԓa(chn)ƷĸN
(yu)c
ʳƷ۱ϩ֬ۇ
õᡢAͪ܄
϶ֲ^VЧe
(ni)C̎PPėUY(ji)(gu)wS
ۇˇnjۺDǿ칤ˇһNԴ20o(j)50USA܊Ҟռԇa(chn)ķ_ʼƾг(x)^VЧ^Vϣ1954l(f)оɹ҇ۇg(sh)Դ50ĩ60оO(sh)gЪʽ 60 ĩ 70 ЇgЪʽۇO(sh)_(sh)_(d) 200 _ϡs 92-94 gUSAMBm(x)ʽa(chn)Ӌȫ* 300 _ϵgЪʽۇO(sh)\D(zhun)
(yng)I(lng)
ӹI(y)ˮˮA(y)^V
ʯͼW(xu)I(y)NЙC܄AҺ^Vעˮ^V
t(y)ˎI(y)NᘄˎҺᘄϴƿˮA(y)^VݔҺԼNءˎע䄩A(y)^V
ʳƷИI(y)ϡˮ^V
Փvǟ(ߜڣ͜ع̻)ۺƬԭϾۇVоˇ۱ϩۇˇ(yng)^һNƬԭ֮ۇˇõľۺƬԭоϩķϩ۱ϩPBTEMAEVAϩNۺԭ(۱ϩ)ľۺ϶^˼ӟضȸc100ϷۇӟضԸcͿۇϩNԭһ㲻Ҫ
PPۇVоĽY(ji)(gu)cwS(x)ȱ^СͨС10ף(sh)wS(x)1~4֮g