ҹ10% ѧΪ߶Ƚ,Ԥ?...

ӾܿʼѸǿ۾Ѵӿɷֱʱ0.1-0.2ߵ3ʱ0.9ı׼ˣ


һƬijߴǶ

һƬǴСΪ1Ӣ磨25ס35ףñյƬһ֤֤ѧ֤򵵰ļеıʽļͨҪʹ...


ܰԤ?

4ο,ʱĵ2,ǻȫ,޷,ݵ,ƾᶨ־,ɹ!


һ?ӿԺͰü?ӿԺͰü...

áӪҪԼעʳ˳ʳû󡢶컹ԡҪٳ


ٲȻٲȻʲô˼

ٲȻ:.ٲȻ:..Ȼ:..һԴǡ


е..е.ٲȻ.

ʱ,еͬѧ,˼ڤ벻,еͬѧٲȻץ,˼.


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˽⵽Ŀ֪ʶЩ?

1.(Brazil)֪Կ:ɽʿ/ʥ˹(Santos)Ϊ󿧷ȲܲһԼռȫܲ1/3Ҫؼв...


ںʲô?

֪AAƺ͹ɷԴںˣߵĺ90%ĬAAģҾҲãѵĹϵΪƻ...


¶ʮһȫѼŷҼҾ,û뵽ͷ ...

ʵľϵذ峣Զ㽺ϰΪ,װӲľƬѹ,ͨ0.2-0.8mm֮䡣 ǾĴСһ,Ҳɹ,ѡýɫʡ...