For example , in the scenarios of purchasing , when users launch a query like ― Nikon d200 ‖, they usually want to know information about the product and compare it with comparable products to make a purchase decision .
例如，在购买商品的产品搜索场景下，当用户搜索你Nikond200时，用户往往想要了解该产品的相关信息，并将其与同类产品作比较，从而做出购买决策。
d200