in - depth investigation

State media say the decision to detain Sanlu Group's Tian Wenhua was made following an in-depth investigation into the company.

The research results can be used as reference to the in-depth investigation of the domestic urban subway safety operation state.

Finally, in-depth investigation on the basis of the implementation of the specific results were analyzed and summarized.

From the sociolinguistic perspective on language in Shenyang City Commercial plaque a systematic and in-depth investigation and analysis.

Through in-depth investigation, police found the video game gambling city staff even organized competitions.

The author and in-depth investigation of the cause of the loss of gorgeous staff, and finally make recommendations for these reasons.

"I'm expecting in-depth investigation and the lecturer's own point of view, " said Shi.

The author has made a more in-depth investigation and some analyses.

An in-depth investigation can cost millions of dollars, say people in the industry. Experts are available for hire at an hourly rate.

do more in-depth investigation of media supervision.

Therefore, it is necessary to conduct an in-depth investigation on the dead-time.

Based on in-depth investigation of accident