How to pronounce“thirty meter”in English

So the “Thirty Meter” in the name refers to the size of the observatory’s aperture— in other words, the diameter of the part of the telescope that collects light.

neoclassical facade of the military history museum in Dresden the thirty meter wedge with a viewing platform interrupts the former Arsenal symmetry

It’s called, get this The Thirty Meter Telescope, or TMT.

The University of California and California Institute of Technology were quick to begin making plans for an especially ambitious one: a thirty meter telescope.