That machine has very intelligent movements.
I want to confidently start that machine.
Please demonstrate how the machine works.
I would like to know the construction of this machine.
I'll demonstrate how this machine works.
This machine is hard to work
This instrument is difficult to handle.
He is skilful in manipulating this instrument―skilful in working this machine.
There must be something wrong with the machine.
This machine has this kind of wonderful effectiveness.
This machine is hard to work―This instrument is difficult to handle―awkward to handle.