英文与中文标点符号规则有天壤之别。所以首先要记住：写英文的时候千万勿使用中文的规则。汉语母语者误用标点符号最大毛病是滥用逗号把好多小句链接起来：
The gear transmission is grade seven, the gear gap is 0.00012 radians, the gear gap has different output values corresponding to any given input value, nonlinearity of the gear gap model can be described by using the phase function method, the existing backlash block in the non-linear library of the Matlab/zdimulink toolbox can be used, the initial value of gear gap in the backlash block is set to zero.
最好应该用句号把长句分成几个短句：
The gear transmission is grade seven. The gear gap, which is 0.00012 radians, has different output values corresponding to any given input value. The nonlinearity of the gear gap model can be described by using the phase function method. The existing backlash block in the non-linear library of the Matlab/zdimulink toolbox can be used; the initial value of gear gap in the backlash block is set to zero.
再者，英文里千万不得留下汉语的书名号、顿号、句号等。也要注意英文与中文的逗号、问号、冒号等虽然看起来很相似，但为了排版一直不要混淆。
空格的使用也要注意。每个逗号、句号、问好、叹号之后，都要空一个格。
另外，英文文章的标点符号规则取决于语言变体（英式或美式）以及所选的文章格式（如、哈弗等）。譬如，美式英文（如美国心理协会格式）里，在列举句中最后两个项目之间加串行逗号（所谓牛津逗号）：... a, b, and d。另外，美国心理协会格式中引号加在句号后面，而不是前面：“We analyzed graphs, curves, and figures.”
The gear transmission is grade seven, the gear gap is 0.00012 radians, the gear gap has different output values corresponding to any given input value, nonlinearity of the gear gap model can be described by using the phase function method, the existing backlash block in the non-linear library of the Matlab/zdimulink toolbox can be used, the initial value of gear gap in the backlash block is set to zero.
最好应该用句号把长句分成几个短句：
The gear transmission is grade seven. The gear gap, which is 0.00012 radians, has different output values corresponding to any given input value. The nonlinearity of the gear gap model can be described by using the phase function method. The existing backlash block in the non-linear library of the Matlab/zdimulink toolbox can be used; the initial value of gear gap in the backlash block is set to zero.
再者，英文里千万不得留下汉语的书名号、顿号、句号等。也要注意英文与中文的逗号、问号、冒号等虽然看起来很相似，但为了排版一直不要混淆。
空格的使用也要注意。每个逗号、句号、问好、叹号之后，都要空一个格。
另外，英文文章的标点符号规则取决于语言变体（英式或美式）以及所选的文章格式（如、哈弗等）。譬如，美式英文（如美国心理协会格式）里，在列举句中最后两个项目之间加串行逗号（所谓牛津逗号）：... a, b, and d。另外，美国心理协会格式中引号加在句号后面，而不是前面：“We analyzed graphs, curves, and figures.”