Roles that the primary oxygen plays in this process have been discussed systemically in this paper.

Based on numerical simulation, obtains the distributions of the dry-bulb temperature of primary air and the dry-bulb and wet-bulb temperatures of secondary air along the flow direction of primary air and secondary air, and the temperature variation of water falling film.

Purpose: To evaluate whether a single-breath hold and single-level test bolus-injection dynamic scanning (SLTBDS) was a good way of defining the portal contrast media peak time and its preliminary application with spiral CT portography (SCTP).

Several important aspects concerning electrical primary design for flood control & drainage pump station are discussed,and some suggestions based on years operation of design achievements are proposed,which may help improve an even more rational and economical electrical design for pump station.