You can think of tr as a (very) simplified variant of sed: it will replace one character with another or remove some characters altogether.
您可以将tr看作为sed的(极其)简化的变体：它可以用一个字符来替换另一个字符，或者可以完全除去一些字符。
Null string variant cannot be converted to a character.
不能将空字符串变量转换为字符。
A kind of program variant method of Chinese characters based on origin character is put forward by analyzing the original strokes and font feature of Chinese characters.
文章通过讨论汉字的基本笔画及字体特征提出了一种基于原体的汉字程序变体方法。
First chapter: Introduced "Lei Pian" the character the basic situation on receives, clear about it on the number of words and to the character principle, with related variant form limits.
第一章：介绍了《类篇》收字的基本情况，明确了其收录字数和收字原则，和有关异体字的界定。
T. has variant. Accurately grasping the new meaning and the character of the new standard is the basic premise to implement in new…
准确地把握《标准》的新内涵、新特征是实施《标准》的前提。
As a result coriaceous bone is in all and akin variant 12 months after art can see have the sign that is united in wedlock with host character, false body secures stability.
结果所有同种异体皮质骨在术后12个月可以看出有和宿主骨结合的征象，假体固定稳定。
Code page 1252. The code page for the Windows variant of the Latin1 character set.
代码页1252。这一页使用拉丁字符集定义了窗体变量。
Underwater acoustic channel is a time-space-frequency variant channel, having a character for narrow bandwidth, high ambient noise level and strong interference of multipath.
而由此构成的水声信道是一个空间与频率响应随机快速变化的传输信道，存在窄带、高噪及强多途干扰。
Underwater acoustic channel is a time-space-frequency variant channel, having a character for narrow bandwidth, high ambient noise level and strong interference of multipath.
而由此构成的水声信道是一个空间与频率响应随机快速变化的传输信道，存在窄带、高噪及强多途干扰。
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