人造磁鐵

   人造磁鐵

    人造磁鐵：fenweitixingcitiehetiaoxingcitie，shidajiashenghuozhongzuichangjiande，qizhongtixingcitiebijiaoshouhuanying。danmiancitieshizhiyimianyoucixing，lingyimiancixingjiaoruodecitie
，fangfashiyongteshuchulideduxintiepijiangshuangmiancitiedeyimianbaoguo，zheyangbeibaoguodeyimiancixingjiangbeipingbi，cilibeizheshedaolingyimian，lingyimiancixingjiangzengqiang。ruyoudechanghezhixuyaoyimianyoucixing，lingyimianruyoucixinghuizaochengsunhuaihuoganrao；有(you)的(de)場(chang)合(he)如(ru)包(bao)裝(zhuang)盒(he)上(shang)的(de)磁(ci)鐵(tie)則(ze)隻(zhi)需(xu)要(yao)一(yi)麵(mian)有(you)磁(ci)性(xing)
，另(ling)一(yi)麵(mian)可(ke)有(you)可(ke)無(wu)，有(you)磁(ci)性(xing)也(ye)沒(mei)有(you)用(yong)，這(zhe)樣(yang)使(shi)用(yong)單(dan)麵(mian)磁(ci)會(hui)大(da)大(da)降(jiang)低(di)成(cheng)本(ben)並(bing)節(jie)約(yue)磁(ci)性(xing)材(cai)料(liao)。