An electronically-controlled method is provided for manufacturing a ceramic matrix composite structure with a desired shape. The electronically-controlled method comprises processing at a first location a plurality of ceramic matrix composite plies to form a stack of the plurality of ceramic matrix composite plies. The electronically-controlled method also comprises transporting the stack of plurality of ceramic matrix composite plies from the first location to a second location which is remote from the first location. The electronically-controlled method further comprises processing at the second location the stack of plurality of ceramic matrix composite plies to provide the ceramic matrix composite structure with the desired shape.

Disclosed herein are plaster boards having a first surface and an opposing second surface, and a first edge and an opposing second edge that bound the first surface and the second surface. The first surface includes a first section and a second section, the first section being raised compared to the second section, the second section abutting the second edge. The second surface includes a first section and a second section that are separated by a boundary between the first edge and the second edge. The first section of the second surface is substantially parallel to the first section of the first surface. The second section of the second surface slopes toward the first surface from the boundary toward the second edge. Methods for making the plaster boards involve forming wet plaster material and drying the wet plaster material such that the wet plaster material hardens into a plasterboard.

A heater includes a base body and an internal conductor. The base body is made of ceramic. The internal conductor is located inside the base body and includes a connection portion. The base body includes a space extending from the connection portion to a lower surface of the base body. The space includes a first space and a second space. The first space contacts with the connection portion. The second space connects the first space and an outer side of the lower surface of the base body, and is smaller than the first space in a planar perspective of the lower surface of the base body.