There is no reliable and handy method the axis straightness of hole with small size and precision fit this paper presents a new measurement design for the hole axis straightness with CMM Based and by which the problem is salved well.

Calculation method of design discharge of sprinkler system;

Based on characteristics of local medium-and small-sized streams and hydrology principle,calculation model of design discharge was set up,which was coupled with the improved water quality model,thereby a simple coupling model of pollution receiving capacity was obtained.

It is a random event that whether the spillway could handle design discharge in the case of design flood stage.

It also can be used to accurately calculate the design flow of automatic fire sprinkler system.

The design scheme for pre-action automatic sprinkling system in tobacco storehouse was presented, including determination of fireproof division and nozzle type, hydraulic calculation in pipe network, determination of design flow rate and water distribution pipe diameter, and selection of air compressor, etc.

A set of calculation methods of design flow at all stages for industrial extraction turbine were presented,based on the analysis of thermodynamic design principles on the flow section of industrial steam turbine,and the thermodynamic design software of non-standard industrial steam turbine was developed by using modular programming.