Interstellar molecular line team of Urumqi Astronomical Station of National Astronomical Observatories used 25 m radio telescope to deal with formaldehyde (H2CO) and hydrogen absorption lines combined lines (H110a) emission line mapping observation and source-based UCHII area Table of sky survey based on a number of massive star forming regions obtained some new research.

simultaneous observations of composite absorption line of formaldehyde and hydrogen emission line observations of molecular clouds held very important significance for the large-scale galaxy distribution, and detection of Galactic structure; On some giant molecular cloud mapping observations, the observation can provide the giant molecular cloud physics and kinetic properties of massive star formation and other important physical processes based on observations. The team used 25-meter radio telescope at the 6cm band of 585 UCHII areas H2CO and H110a single observation, more than 150 newly discovered source of H2CO lines, in which 31 also detected H110a. we got 21 UCHII kinematical distance area and found most of them are located in the Milky Way's spiral arms.

For W51, W3, DR21 and several other massive star forming regions, we did mapping observation of H2CO and H110. CO and infrared are being combined with data analysis and research into these massive star forming regions of the physical and dynamic properties.