China's transoceanic aerospace observation and control technology will accelerate preparations for the nation's manned space flight, an official with the China Base for Maritime Aerospace Survey Vessels said Friday.

The official noted that China is approaching the advanced standards of a small number of advanced countries in the sphere of transoceanic aerospace observation and control technology.

The country's four vessels for transoceanic aerospace observation and control served the four unmanned Shenzhou spaceships launched during the past three-plus year period from November 1999 to January 2003.

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