'a type of machine' is a correct and usable sentence fragment in written English.
You could use it to give a brief description of an object, for example: "The robot was a type of machine that specialized in medical treatments."
("Macaroni" is slang for a MAC-10, a type of machine gun).
M zero is a parallel supercomputer, a type of machine that has lately come to dominate the avant-garde in supercomputer architecture, because the design offers succulent possibilities for speed in solving problems.
I.B.M. on Tuesday formally launched its latest mainframe computer, a type of machine that has been around for 49 years, and has endured through minicomputers, microcomputers, personal computers, computer servers and lots else.
It's a type of machine learning that works when an "agent" is allowed to act on a trial-and-error basis within an interactive environment.
Okada has built a $4.8 billion fortune from designing a type of machine that employs aluminum tokens instead of the ball bearings used in traditional pinball-like pachinko.
Traditional reinforcement learning, a type of machine learning, relies on value functions — a construct that should be familiar to anyone who has studied economics.
Circular motifs might actually be snap fasteners or beads, for example, arranged to provide a principal horizontal band, and the concept of triangles might be inserted with a type of sewing machine stitching.
In 1993 a respected U.S. expert on the Russian military asserted in an interview that the Soviet Union had developed a type of doomsday machine in the early 1980s and that the device was still operative in Russia.
As a result, we showed that the joint probability of the acoustic features and the phonological features forms a type of Boltzmann machine.
Finally, degradation analysis of a type of heavy machine tools is presented to demonstrate the application and performance of the proposed method.
The regenerative liquid ring (RLR) pump is a type of rotodynamic machine which has the ability to develop high heads at relatively low flow rates in only one impeller stage.
