Premier Wen Jiabao (R) chats with Qian Xuesen, founder of China's space industry, in Beijing August 2, 2008. [Xinhua]

Afterwards, Wen visited Qian at his residence.

The premier had many face-to-face talks with Qian, who is four months younger than Ji, during the late 1980s and the early 1990s, when Wen was in charge of the development of science and technology in the CPC Central Committee. Qian was then president of the China Association for Science and Technology.

Being a geological expert himself, Wen had supported Qian for his strategic proposals on the development of sand industry, mathematics, and chemical industry. Wen even organized some experts to assist Qian in research projects.

In their meeting, the premier informed the scientist of the country's progress in space industry, such as the forthcoming launch of the Shenzhou-7 manned spacecraft, the Second Phase of the Moon-orbiting Program, and the country's ambitious plan to build large passenger aircraft.

Wen attributed China's achievements in science and technology to the decades-long efforts made by the elder generation Chinese scientists.

The premier echoed Qian that China still lags behind in many key sectors. "We have to be diligent," Wen said.