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彈簧秤,秤一種,以彈簧伸縮,求出件嘢重量。通常彈簧一面有尺,上方有環,方便穿住拎住,而下面有鈎,鈎住嘢來秤。按彈簧原理,彈簧拉得幾長,同受力成正比。彈簧秤唔能量得好準,皆因彈簧拉得多會鬆。之不過,秤身細,方便收埋,亦方便帶出去。
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