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(质(zhì )点(diǎn )，质(zhì )点(diǎn ))

在(zài )说(shuō )明(míng )物(wù )体(tǐ )运(yùn )动(dòng )状(zhuàng )态(tài )时(shí )，如(rú )果(guǒ )不(bú )考(kǎo )虑(lǜ )物(wù )体(tǐ )的(de )大(dà )小(xiǎo )，认(rèn )为(wéi )物(wù )体(tǐ )只(zhī )是(shì )具(jù )有(yǒu )质(zhì )量(liàng )的(de )点(diǎn )，这(zhè )种(zhǒng )点(diǎn )叫(jiào )做(zuò )“质(zhì )点(diǎn )”。各(gè )种(zhǒng )基(jī )本(běn )粒(lì )子(zǐ )体(tǐ )积(jī )极(jí )小(xiǎo )，清(qīng )谭(tán )嗣(sì )同(tóng )《以(yǐ )太(tài )说(shuō )》：“任(rèn )举(jǔ )万(wàn )物(wù )中(zhōng )之(zhī )一(yī )物(wù )，如(rú )一(yī )叶(yè )，如(rú )一(yī )尘(chén )，如(rú )一(yī )毛(máo )端(duān )，如(rú )一(yī )水(shuǐ )滴(dī )，其(qí )为(wéi )物(wù )眇(miǎo )乎(hū )其(qí )小(xiǎo )矣(yǐ )，而(ér )要(yào )皆(jiē )合(hé )无(wú )量(liàng )之(zhī )微(wēi )质(zhì )点(diǎn )黏(nián )砌(qì )而(ér )成(chéng )。”

章(zhāng )炳(bǐng )麟(lín )《菌(jūn )说(shuō )》：“即(jí )如(rú )光(guāng )、热(rè )、电(diàn )三(sān )者(zhě )，虽(suī )不(bú )能(néng )得(dé )其(qí )质(zhì )点(diǎn )，而(ér )终(zhōng )与(yǔ )湛(zhàn )然(rán )不(bú )动(dòng )者(zhě )有(yǒu )殊(shū )。”

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