GbEng
铜的化学符号是Cu。 The chemical symbol for copper is "Cu".
他的讲话文本得加上标点符号. The transcription of his speech must be punctuated.
我们的老师对标点符号非常重视. Our teacher is very fussy about punctuation.
这些小学生尚未学会正确使用标点符号. The children have not yet learned to punctuate correctly.
在地图上, 十字符号代表教堂. On maps, a cross is the symbol for a church.
有关各符号的意义请见左边附表. For an explanationof the symbols see the key, inset left.
综合命题由和或其符号所连接的子句组成的复合命题，只有当所有子句为真时，该句才为真 A compound proposition that has components joined by the word and or its symbol and is true only if both or all the components are true.
在二进制浮点数中，一种带有符号的特定值，其量值大于一台计算机所能表达的任何二进制浮点数。 In binary floating-point concepts, a value with an associated sign which is mathematically greater in magnitude than any binary floating-point number.
密码一种密码系统，其中固定长度的明文里的单元，通常为字母，被任意倒置或按事先确定的符号系统替换 A cryptographic system in which units of plain text of regular length, usually letters, are arbitrarily transposed or substituted according to a predetermined code.
这些符号我完全不明白是什麽意思. These symbols mean nothing to me.
计算机是一种快速、精确的符号加工系统，它能接收、存储、处理数据并产生输出结果。 A computer is a fast and accurate symbol processing system. It can accept, store, process data and produce output results.