is approximately equal to的意思|示意

约等于号 ≌ is equal to or approximately equal to 等于或约等于号 ≈ is approximately equal to 约等于号 condition 充要条件 sufficient and necessary condition函数 function自变量 argument定义 .

约等于 ... △ triangle 三角学形 ≌ is approximately equal to 约等于 √(square) root 二次方根 华星创业待遇杭州西湖区华星路创业大厦附近租房 ...

约即是号 ... ≌ is equal to or approximately equal to 即是或约即是号 ≈ is approximately equal to 约即是号 ＜ is less than 小于号 ...

约便是号 ... + plus 加号；正号 ≈ is approximately equal to 约便是号 ~ tilde 海浪符 ...