以符号代文字

　　以下各符号均可在记录中代替文字

　　1． 数学符号

　　equal: =

　　boost, improve, enhance, strengthen :

　　↗

　　plus: +

　　minus: —

　　times: x

　　divided by: ÷

　　degree: ℃

　　percent: %

　　per thousand: ‰

　　between:|.|

　　because, because of, due to: ∵

　　therefore, so, as a result, consequently: ∵

　　plus or minus: ±

　　versus, the ratio of, divided by : 

　　：

　　so on, etc, and so forth : ···

　　is (much) greater/bigger/larger/faster/quicker/heavier/older… than; superior to, surpass:> 

　　is (much) less/smaller/lighter/younger/fewer/inferior to/worse than…: < 

　　not equal to :¹

　　not less than: 

　　varies as, in direct proportion to: ∝或∞ 

　　parallel, is parallel to : ‖

　　right angle: ∟

　　perpendicular, is perpendicular to: ⊥

　　circle, circumference: ○

　　ellipse: 0

　　diameter: θ

　　triangle, delta : △

　　pressure, influence:⊥(竖线为向下箭头)

　　approximately, about, nearly, around,almost: ≈

　　as always, 一直，总是， 一贯：≡