(8)в۵ײ״ӦǷdzܵ״ѻ,Чõijڱ滹п,ѻ֭ųЩñóɺܽ,Щ״Իһ,ڹ˲۽һϴǰ˹˲ۻá (9)в۵IJ۵ƽס,ƽЧ,֭ʧ,ƽڷ1%~2%б,ž֭ײһһռ౭,౭Ϊ֭2%~3%,ļнΪ170°,ܵõõijѻ гһֳЧܺõȥ豸,ֻҪЧؿ֭йе̵Ч֭ýв۵ٶ,ͻϿԴﵽҪ ơԭ:ѿ.ᾧѿ.ѿ.ɿѿ.ơƻ.ơƽĸ.ѿ.ΫǾơԭ˾