You should examine the log from the bottom up or search on the name of the portlet.

应从下往上检查log或搜索portlet名称。

youdao

For search engine optimization, consider the bottom-up approach where you ensure that as many of your catalog pages are indexed as possible.

对于搜索引擎优化，请考虑可确保针对尽可能多的目录页面建立索引的自底向上的方法。

youdao

It will then construct all feasible plans simultaneously using a bottom up, breath-first search strategy.

然后，它会用由下至上、宽度优先(bottom up, breadth - first)的搜索策略，同时构造所有可行的计划。

youdao

For example, a search for "30 Rock, " the name of a popular TV series, will bring up a section called "Actor searches for 30 Rock" at the bottom of the search-results page.

WSJ: Google Gives Search a Refresh