"mobile machine" is a correct and usable phrase in written English.
It can be used to refer to any device that can travel or be moved around and performs some kind of function. For example, "The fire department used a mobile machine to control the blaze."
The crane was one of the largest in the nation, a mobile machine with a 400-foot boom capable of lifting more than a million pounds, refinery officials said.
Elsewhere, the department has been receiving stick for hopping on Future Day (yesterday was the date that Marty McFly travels to in Back to the Future 2) by tweeting a picture of Workie in the film's time mobile machine, the DeLorean, with the accompanying rephrased quote: "Pensions?
Moving at a mile an hour, this mobile machine is remarkably nimble, turning sharp corners, negotiating walls and tight spaces.
Remote monitoring of any mobile machine requires radio technology, Internet technology, protocols and applications.
Moving at a kilometer and a half an hour, this mobile machine is remarkably nimble, turning sharp corners, negotiating tight spaces.
Predicting mobile machine tool dynamics prior to moving the machine to a new part and/or location is essential to guide first-time-right in situ machining solutions.
It shows a scene common to many recent wars: a pickup truck in service as a mobile machine-gun platform, with the machine gunner (in this case, standing within a pair of black Chuckie-T high-tops) in back, behind a 14.5-millimeter machine gun on a makeshift mount.
That's why Darpa wants mobile machines that can do surgery without human guidance.
All its next generation of processors will be at least dual core, even for mobile machines.
Planners are debating whether to use smaller, mobile machines that could clamber through the darkness of the intact floors.
Self-driving cars, factory robots and a new class of farm hands known as ag-robots are already demonstrating what increasingly mobile machines can do.
