covering letters

For most people, the first-class rate has the greatest impact, covering cards and letters.

对多数人来说，受到一类资费的影响最大。这个资费涵盖了信用卡，信件。

So long as X is compact manifold, it has finite open covering, using different letters to name every open set of open covering, only need to use finite character set, through dynamics, various symbol sequence were formed with using this character set.

f：X→X只要X是紧致流形，它就具备有限的开覆盖，以不同的字母命名各片覆盖，只需用到有限的字母集合，用这个字母集合可以通过动力学生成种种符号序列。

Discourse Analysis And Writing Ability Training& Instruct the students to write covering letters with the method of discourse analysis

语篇分析与写作能力培养&用语篇分析方法指导《实用英语》教程中求职信的写作

Advice on covering letters

关于求职信的几点建议

"As a rule, we deliver all our orders within three months after receipt of the covering letters of credit."

一般来说，在收到信用证后3个月内就可以全部交货