Could someone give me a precise name of this kind of partition in English？
Here is a picture for that。

http://www.google.com/imgres?q=%E5%B7%A5%E5%9C%B0%E6%8C%A1%E6%9D%BF&um=1&sa=N&hl=en&biw=1366&bih=667&tbm=isch&tbnid=3z2xc4PmsaldAM:&imgrefurl=http://td.0937.net/ShowProducts-799-20364.html&docid=UQ5TX9UatkdgDM&itg=1&imgurl=http://td.0937.net/upload/Images/2012-8-28/20128281129587679140.jpg&w=600&h=454&ei=bB3KUenYLMW24ASb14GICA&zoom=1&ved=1t:3588,r:82,s:0,i:336&iact=rc&page=4&tbnh=191&tbnw=258&start=61&ndsp=23&tx=152&ty=129

Question

Could someone give me a precise name of this kind of partition in English？
Here is a picture for that。

http://www.google.com/imgres?q=%E5%B7%A5%E5%9C%B0%E6%8C%A1%E6%9D%BF&um=1&sa=N&hl=en&biw=1366&bih=667&tbm=isch&tbnid=3z2xc4PmsaldAM:&imgrefurl=http://td.0937.net/ShowProducts-799-20364.html&docid=UQ5TX9UatkdgDM&itg=1&imgurl=http://td.0937.net/upload/Images/2012-8-28/20128281129587679140.jpg&w=600&h=454&ei=bB3KUenYLMW24ASb14GICA&zoom=1&ved=1t:3588,r:82,s:0,i:336&iact=rc&page=4&tbnh=191&tbnw=258&start=61&ndsp=23&tx=152&ty=129

Answer

http://td.0937.net/upload/Images/2012-8-28/20128281129587679140.jpg

Answer

Your link is too long!