1.
My camera use only weather symbols to decide correct exposure.
我的相机只用天气符号来确定正确的曝光时间。
2.
Astronomical sign: Symbols to represent stars of the heavenly body.
天文符号:用来表示天体星辰的符号。
3.
general electric symbolic assembly language
通用电气符号汇编语言
4.
" This symbol appeared on the Peso, and looked much like the modern$ sign.
这一符号出现在比索上，很像今天$一符号。
5.
" Graphical symbols for diagrams Part 2 Symbol elements, qualifying symbols and other symbols having general application"
GB/T4728.2-1998电气简图用图形符号第2部分符号要素、限定符号和其它常用符号
6.
Symbol characters (--) with symbols (?a)
符号字符（--）替换为符号（—）
7.
additional character
附加符号[字符], 特殊符号
8.
Symbol for various electrical switches. Switch type can be specified.
各种电气开关符号。可以指定开关类型。
9.
Symbol for various electrical switches. Size can be specified.
各种电气开关符号。可指定大小。
10.
Graphical symbols for use on electrical equipment
GB/T5465.2-1996电气设备用图形符号
11.
inert gas plant
油船具有惰性气体装置的符号
12.
Graphical symbols for electrical diagrams--General information
GB/T4728.1-1985电气图用图形符号总则
13.
General principles for the creation of graphical symbols for use on electrical equipment
GB/T5465.1-1996电气设备用图形符号绘制原则
14.
" Aerodynamics--Concepts,quantities and symbols--Part 1 Aerodynamic terms in common use"
GB/T16638.1-1996空气动力学概念、量和符号
15.
" Aerodynamics--Concepts,quantities and symbols--Part 3 Aircraft geometry"
GB/T16638.3-1996空气动力学概念、量和符号
16.
Graphical and letter symbols to be used in electrical diagrams for petrochemical enterprises
石油化工企业电气图图形和文字符号
17.
Letter symbols for gas lasers
GB/T12082-1989气体激光器文字符号
18.
mathematical symbol
数学符号,运算符号