ABOUT USǰλ: „ӑB > ИI„

ИI„

ˢʹülڣ2014-12-01 x1253

ֿĻͼ www.ddwti.com FڼͥbbzʹԽԽձzʩ˳ҊĝLͿͿʹëˢˢˢͿҲdzõʩʹˢrҪעµһЩʹüʩ^׃ĸЧʺЧ

1_ˢʹ÷޶ȵ؜pٜˢĮaܶͿϹ̶fЌ_ʩ򣺌ˢʹǰɃԁˮнݺ͝һ1015^ķǣ1%ϴ·ԁˮˮѣˢ

ˢպrރҺ_ˢëһL1/3Lպˢp|ޱڔʹˢMֲ

ͿbrˢǶͿb摪45°ډں컨ʩrҪֱˢˢҪLҪpͿbľĕrҪ혼yˢ

ˢrˢԸĤ^ˢzr؄eǰйrҪˢͿˢzҪĤõwɃˢ_õЧ

2ͿˢzrMxˢz|ëˢԴ^ϱ↖}ĮaһˢкõĸXxˢעŽc

(1)ˢë˲܉һ̶܉׵؏֏ԭΠ

(2)xβëҲÆRˇëˢ|

(3)ُˢӵijߴcҎģQһfСˢӼˢëɷքeƽ^ҠһǶwҪǷһЩΠĵط

 

һϢ aˇķ
һϢ