dx

例句:

• Had lab work done recently and techs were surprised at DX of depression.
  来自SA
• The infinitely small " dx " and " dy " were sometimes described as vanishing or incipient quantities.
  有时候把无穷小量dx和 dy 描述成正在消失的或者刚出现的量.
  
• Another tack at light RUP is Robert Martin's dX process.
  轻型RUP的另一个方针是RoberMartin的dx过程.
  
• The manual ISO setting has priority over the automatic DX - coded setting.
  手动iso设置优先于自动DX型设置.
  
• The problem is that the latest version of the Kindle - called the Kindle DX - has made the text-to-speech feature voluntary.
  来自BBC
• I think the company is called VIP DX or Redlabs or something....????
  来自SA