1. Guidelines and Tips on Email Communication

Grammatical Issues

• Countable Nouns vs Uncountable Nouns
  
  the number of accesses       "the amount of power comsumption
• "the number of ..." （「 ... の個数」） vs "a number of ..." （「多くの ... 」）
• Phrases on Numbers
  • a couple of
  • a few
  • several
  • a half dozen
  Example:
  a few tens of thousands of packets per second