描述：rmal minerals (quartz. calcite, pyrite and molybdenite)have thrown light on the evolution trend of the molybdenum-bearing hydrothermal system which originatedfrom magmatic processus and underwent significant mixing with meteoric waters in the later stages ofhydrothermal activity.
描述：al measurement UCG not only is ineffective, but also loses a lot of precious information for diagnosing heart diseases. The application of autoanalysis system including sonic pen digitizer-computer elewtes the calculative efficiency of UCG, and obtains a lot of useful in-