1.
Problems in the Teaching of Sign Conventions in General Physics Optics;
试探普物光学中符号法则的教学问题
2.
Descartes' Law of Signs for Generalized Polynomials and Its Application in the Method of Descent
广义多项式的Descartes符号法则及其在降维方法中的应用
3.
Rules for the presentation of graphical symbols--General principles
GB/T16900-1997图形符号表示规则总则
4.
In principle, there are two methods of describing glyphs in fonts: bitmaps and vectors.
原则上，在字体中有两种描述符号的方法：点阵和向量。
5.
In general, the characters, phases and their syntax rules for programming are generally called“ programming language”.
通常，程序设计所使用的符号、语及其语法规则通称为程序设计语言。
6.
The signed right shift >> uses sign extension: if the value is positive, zeroes are inserted at the higher-order bits;
“有符号”右移位运算符使用了“符号扩展”: 若值为正，则在高位插入0；
7.
relating to or using or proceeding by means of symbols.
与符号有关或使用符号方法，或通过符号方法进行。
8.
the act of marking with stripes.
用条纹做符号的方法。
9.
attributed string translation grammar
属性符号串翻译文法
10.
Welds-symbolic representation on drawings
GB/T324-1988焊缝符号表示法
11.
Use of punctuations marks
GB/T15834-1995标点符号用法
12.
A variety of different symbols is in use.
符号的用法不统一。
13.
a sign indicating the operation of addition.
表示加法运算的符号。
14.
To mark(a score)with indications of which fingers are to play the notes.
标明指法符号标明指法符号以便于用指演奏
15.
a state of order in which events conform to the law.
符合法律的原则或状态。
16.
It is not grammatical to say 'They is.'
说“They is”不符合语法规则。
17.
Graphical symbols for electrical diagrams--General information
GB/T4728.1-1985电气图用图形符号总则
18.
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