ȫܽʽ
Ʒ
ϵȫܵPP(۱ϩ)ƳɵģƾPPĻѧܣʹùѧҺĹӦãһע͵ǣ졢ǣȷ;ǸƷʡЧܡʵõƷ
ص
PP(۱ϩ)ƳɵģҺʴ;
һע˿졢ǡϴ;
רķ©ƣҺͨ©;
ʱ淶³ѹʹ(65 <0.6MPa)
һܹϴӸ
һʽ