使用符号

Those that rotate light in the opposite direction are called levorotatory or optical isomers. The symbols d- and l-, formerly used to indicate dextro- and levorotatory isomers, are no longer sanctioned owing to confusion with D- and L-, which refer to configuration relative to D-glyceraldehyde.

其符号d-和 l-，原先是用来表示右旋的和左旋的异构体，现在由于容易与D-和L-混淆而不再使用，这两个符号涉及与D-甘油醛相关的结构）。

A notational symbol which represents a number is called a numeral , but in common usage the word number is used for both the abstract object and the symbol, as well as for the word for the number.

阿notational符号代表了一些所谓的数字，但在共同使用这个词号码是用于抽象的对象和符号，以及字的号码。

Notational systems varied widely from person to person, school to school, and region to region, and Chiang K'uei was in any event probably exceptional among literati in entering—by employing a written system at all—what was more comfortably the province of trained musicians.

符号系统不仅人人有异，而且流派于流派、地区于地区之间也是各自相异，姜夔出人意外地是使用书面符号系统——其对于训练有素的乐师而言不是难事。

Proofreaders marks: A standard series of symbols used by proofreader to denote errors and the necessary correction s.

校对符号：校对员使用的一组标准符号。用它指示错误和所需的更改。

The symbol table of the file filename is added to the symbol table originally read with the symbol-file command.

filename 的符号表被增加到使用 symbol-file 命令读取的符号表中。

It is a subdirectory of symbolic links to open file descriptors in use by the program.

它是个包含符号连接的子目录，这些符号连接指向该程序正使用的打开文件的描述符。

D Whyte, in his "analysis Easy"(analyticem is Inartem agoge,1591) works, the first systematic use of symbols of unknown value calculation, Operators made with a number of symbols of the difference between the provisions of the algebra and arithmetic boundaries.

韦达在他的《分析方法入门》（Inartem analyticem isagoge，1591）著作中，首次系统地使用了符号表示未知量的值进行运算，提出符号运算与数的区别，规定了代数与算术的分界。

It is advisable that Chinese summary is controlled with 300 words, english summary should agree with meaning of Chinese summary article, with 200 substantival and advisable. 5, graph, watch is followed civil appear, have axiomatic sex, graph with necessary in the limit of, avoid by all means and literal content repeat, it is clear that line of value of coordinate of graph Chinese word, symbol, freely, mark value must be written, mark eye should use standard physical quantity and unit symbol, form is used 3 lines...

中文摘要以300字左右为宜，英文摘要应和中文摘要文意一致，以200个实词为宜。5、图、表随文出现，有自明性，图以必要为限，切忌和文字内容重复，图中文字、符号、纵横坐标值、标值线必须书写清楚，标目应使用标准的物理量和单位符号，表格采用三线。。。

Because the creation was spontaneous,the symbols were various,ununited and therefore could't be used commonly.

由于创造符号的行为是自发的、各行其是的，因而创造出来的符号是各种各样的、极不统一的、无法共同使用的。

A Russian businessman has trademarked the emoticon—or combination of punctuation marks—used to convey a wink in text messages and e-mails.

一位俄罗斯企业家已将这个在短信和电邮中使用的眨眼表情符号——由三个标点组成的符号——注册商标。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。