電(dian)子(zi)地(di)磅(bang)稱(cheng)重(zhong)時(shi),將(jiang)待(dai)稱(cheng)重(zhong)物(wu)體(ti)的(de)四(si)個(ge)部(bu)件(jian)放(fang)置(zhi)在(zai)稱(cheng)重(zhong)板(ban)上(shang),並(bing)作(zuo)用(yong)於(yu)長(chang)杆(gan)和(he)短(duan)杆(gan)的(de)關(guan)鍵(jian)點(dian)。長(chang)杆(gan)的(de)力(li)點(dian)和(he)連(lian)接(jie)鉤(gou)將(jiang)力(li)傳(chuan)遞(di)到(dao)測(ce)量(liang)杆(gan)的(de)關(guan)鍵(jian)點(dian)。通(tong)過(guo)手(shou)動(dong)增(zeng)加(jia)和(he)減(jian)少(shao)重(zhong)量(liang)以(yi)及(ji)左(zuo)右(you)移(yi)動(dong)重(zhong)量(liang),可(ke)以(yi)獲(huo)得(de)待(dai)稱(cheng)重(zhong)對(dui)象(xiang)的(de)稱(cheng)重(zhong)值(zhi)。

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