jiansudiandongjiyibanshizhijiansudianji，zuoyongshijiangdizhuansu，zengjiazhuanju，jiangditongshitigaoshuchuniuju，niujushuchubiliandianjishuchuchengjiansubi，danyaozhuyibunengchaochujiansujiedingniuju，jiangditongshiyejiangdilefuzaideguanliang
，guanliangdejianshaoweijiansubidepingfang
，yeyouqitayuanyinshiyongjiansudianjide
，weiletigaodianjimeiyibudeyunzhuanjingdushiyongjiansuji，weilebimiansifudianjizaidisudegongzhenqutongguojiansujilaitigaosifudianjideyunxingsudu，weilepipeifuzaidegaozhuandongguanliangdeshihoutongguogaojingmijiansujilaitigaodianjidezhuandongguanliangdeng，jiansudianjishizhiduogongnengjiansujihedianjidejichengti
，zhezhongjichengtitongguoyekechengweichilunmadahechilundianji。

精(jing)密(mi)減(jian)速(su)機(ji)是(shi)一(yi)種(zhong)動(dong)力(li)傳(chuan)動(dong)機(ji)構(gou)，利(li)用(yong)齒(chi)輪(lun)的(de)速(su)度(du)轉(zhuan)換(huan)器(qi)，將(jiang)電(dian)機(ji)的(de)回(hui)轉(zhuan)數(shu)減(jian)速(su)到(dao)所(suo)要(yao)的(de)回(hui)轉(zhuan)數(shu)，並(bing)得(de)到(dao)較(jiao)大(da)的(de)轉(zhuan)矩(ju)的(de)機(ji)構(gou)，在(zai)目(mu)前(qian)用(yong)於(yu)傳(chuan)遞(di)動(dong)力(li)與(yu)運(yun)動(dong)的(de)機(ji)構(gou)中(zhong)都(dou)可(ke)以(yi)見(jian)到(dao)它(ta)的(de)蹤(zong)跡(ji)
，從(cong)交(jiao)通(tong)工(gong)具(ju)的(de)船(chuan)舶(bo)

、汽車

、jianzhuyongdezhongxingjiju，jixiegongyesuoyongdejiagongjijujizidonghuashengchanshebei，daorichangshenghuozhongchangjiandejiadian
，zhongbiaodengdeng，qiyingyongcongdadonglidechuanshugongzuo，congxiaofuhe
，jingquedejiaoduchuanshudoukeyijiandaojiansujideyingyong，qiezaigongyeyingyongshang

，chilunjiansujijuyoujiansujizengjiazhuanjugongneng，yinciguangfanyingyongzaisuduyuniujudezhuanhuanshebei。

而普通電機，俗稱馬達
，是指依據電磁感應定律實現電能轉換或傳遞的一種電磁裝置，在電路中用字母M表示，之前是為D，現標準已改為M表示
，它的主要作用是產生驅動轉矩，作為用電器或各種機械的動力源
，發電機在電路中用Gbiaoshi
，tadezhuyaozuoyongshiliyongdiannengzhuanhuaweijixieneng，dianjishidongliyuan，youjiansujichangjiacaigouhuilai，tongchangdazaijiansujishiyong

，xingchengzuhetidejiansudianji，erbeiguangfanyingyongyugexinggeye，dianjikeyianzhaobuyongdeyongtu、功率、大小，應用在不同的還有，例如小到電子鎖具

，大到鋼鐵、汽車行業。