Google返回的查询地址中的有趣信息

I just found some interesting information in the query address returned by Google. If I type in the search bar "move", Google will return the following address to me:

http://www.google.com.hk/search?hl=zh-CN&newwindow=1&safe=strict&client=firefox-a&rls=org.mozilla%3Azh-CN%3Aofficial&q=move&aq=f&aqi=&aql=&oq=

which contains some interesting fields, such as:

hl=zh-CN               (language)
newwindow=1        (whether to open a new window when a result entry is clicked)
client=firefox         (just like what it says)
q=move                (what I queried)

Interesting.