A guide pin piercing jig includes a cylinder unit and a frame having a positioning projection at a tip thereof, in which the cylinder unit has plural parallel guide pin insertion cylinders and tentative fixing unit and is attached to the frame slidably so as to be directed to the tip of the frame. At least one of the pressure side shroud body and the suction side shroud body defines a coupling spar which is formed to extend at least partially through a bore hole defined within the airfoil of the turbine blade. The solid is ground, before the mixing stage with the coolant solid, to obtain solid pellets with a thickness of between 1 mm and 30 mm, a width of between 1 mm and 40 mm, and a length of between 1 mm and 100 mm. Microchannel and filter capping, on-chip heating and temperature sensing, introduction and trapping of catalyst particles in the microchannels, flow distribution, microfluidic interfacing and thermal insulation are features of the microreactor. The invention further relates to a corresponding transmitting method and frame structure, as well as a corresponding receiving apparatus and method, and corresponding transmitting and receiving apparatus and method.