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论文数字使用中的注意事项。(1)尾数“0”多的5位以上数字,可以改写为以万和亿为单位的数。一般情况下不得以十、百、千、十万、百万、千万、十亿、百亿、千亿等作单位(百、千、兆等词头除外)。例如:1 800 000可写成180万;142 500可写成14.25万,不能写成14万2千5百;5000字不能写成5千字。(2)纯小数必须写出小数点前用以定位的“0”。数值有效位数末尾的“0”也不能省略,应全部写出。例如:1.500、1.750、2.000不能写作1.5、1.75、2。(3)数值的修约
Notes on digital usage of the essay. (1) mantissa “0 ” more than 5 digits, can be rewritten as the number of million and million. Under normal circumstances, no ten, one hundred, one thousand, one hundred thousand, one million, ten million, one hundred billion, one hundred billion, etc. shall not be used as the unit. For example: 1 800 000 can be written as 1.8 million; 142 500 can be written as 142 500, not write 142 500; 5000 words can not be written as 5 words. (2) Pure decimals must be written before the decimal point to locate “0 ”. “0 ” at the end of the number of significant digits can not be omitted, should be written out. For example: 1.500,1.750,2.000 can not write 1.5,1.75,2. (3) the value of rounding