摘要:
An elbow includes an elbow body, and a pipe wall of the elbow body is saw-toothed along an extending direction of the elbow body so that a bending angle of the elbow body is adjustable.
摘要:
The present disclosure provides a method and a device for transmitting and identifying a data mapping mode information. The method includes steps of acquiring a first data signal, selecting a mapping mode for transmitting the first data signal, and transmitting the first data signal and information about the mapping mode for transmitting the first data signal to a second terminal via an identical data line.