3又8分之一：three and eighth；120/317：one hundred and twenty over three hundred and seventeen

a/b：a divided by b，a over b；a不等于b：a not equals to b

a大于等于b：a equal to or large than b：a小于等于b：a equal to or less than b

（ ）：round brackets，parentheses；[ ]：square brackets

〔  〕: angular brackets；{ }：braces

a∈W：a is a menber of set W ；A是W的一个子集：A is a subset of W, set A is contained in set W

s→F：s map into F；  ∴：therefore；  ∵：because

98℃：nighty eight degrees centigrade 32℉：thirty two degrees Fahrenhelt

5%：five pecent    5‰: five permille

转载本文请联系原作者获取授权，同时请注明本文来自何小阳科学网博客。
链接地址：https://blog.sciencenet.cn/blog-257249-625756.html

上一篇：雷锋叔叔的真与假及其他
下一篇：昨天被删两篇博文，心里不爽