a thorough search

基本解釋

A thorough search of the ledgers revealed nothing.
對總賬的徹底調(diào)查沒有發(fā)現(xiàn)任何東西。
To make a thorough search, six teams of two divers descended daily , each team working a one-hour shift.
為了徹底地搜尋海底，每兩名潛水員組成一組，共六組，每天潛入水中，一小時換班一次。
After investigators detained the man and executed a thorough search of the plane and all the luggage on board, they determined the man had been suffering from food poisoning.
在調(diào)查人員拘捕這名男子并對整架飛機和機上行李進行了徹底搜查以后，他們確定該名男子只是食物中毒。

This is true despite the fact that prior to filing a patent application a thorough search is typically performed, looking for any publication that might block a patent from issuing, and that a patent application is only filed when chances for obtaining a patent appear good.
FORBES: Keep the Current Standard for Invalidating a Patent