To analyze fuel put into a boiler at constant or higher analysis accuracy, and shorten a period until an industrial analysis value of the fuel can be acquired.SOLUTION: An analysis condition adjustment device 60 comprises: a first NOx calculation part 61 for calculating a reference NOx estimation...
PROBLEM TO BE SOLVED: To obtain good temper effect without reducing work efficiency.;SOLUTION: When performing temper bead welding in which a hardened region (H1) generated in a mother material is annealed by welding heat when performing welding of the second layer or later, the welding speed ...