XP required users to activate their copy with a 50-number code over the web, or by ringing Microsoft.

XP系统要求用户在网上使用他们的50位激活码激活系统，或者

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If you can't remember your number, write it in code in an appointment book.

如果你记不住你的号码，就用密码把它写在预约本里。

《柯林斯英汉双解大词典》

Instead of human being's counting error, which only results one or two counting error in number, an error in the program code could cause tramendous error in number.

人类的计数错误只会导致一到两个数字错误，而程序代码中的一个错误可能会导致数字上的严重错误。

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"It is a tax code that makes it all too easy for a small number of individuals and companies to abuse overseas tax havens to avoid paying any taxes at all,"

VOA: standard.2009.05.04

So, one simple way to code intensity is the number of neurons firing; the more neurons the more intense.

影响反应强度的一个简单因素,就是产生神经冲动的神经元数量,神经元越多,反应强度越大

耶鲁公开课 - 心理学导论课程节选

This little set of code here from create insert and number. What's create do?

这一小段代码是创建插入和编号的,创建是做什么的？

麻省理工公开课 - 计算机科学及编程导论课程节选

The use of a code number to access the images protects a traveller's privacy, shielding the photos from the public eye.

BBC: Expert portraits in touristy spots

When users are in a store considering whether to purchase an item, they can punch in its bar code number on their phones.

ECONOMIST: America rides the wireless wave

The bank said customers should bring photographic identification and account details (account number and sort code) and a pay-slip if the balance did not reflect any salary payments.

BBC: Ulster Bank sign