They are archaeology, linguistics and ethnography.

它们分别是考古学、语言学和民族志。

Based on ethnographies, anthropologists can provide explanations of the behavior of different people.

基于民族志，类学家可以解释群的行为。

And ethnography can also help companies to design new products or services that customers really want.

且种学还能够帮助公司设计出正想要的新产品或者服务。

Well, businesses are finding that ethnography can offer them deeper insight into the possible needs of customers either present or future as well as providing valuable information about their attitudes towards existing products.

企业逐渐发现，学习种学能够使他们更深层次地洞悉现有或未来的潜在需求，时也使他们获取了对他们现有产品的宝贵意见。

Two of its branches are ethnography (the study at first hand of individual living cultures) and ethnology (which sets out to compare cultures using ethnographic evidence to derive general principles about human society).

它的两个分支是类学(即个生活文化的第一手研究)和种学(它通过种学的证据来比较的文化，从得出关于类社会的一般原则)。