The stars are so far away that people cannot tell much about them, without very excellent instruments.
Many Mennonites also conduct some or all of their services without instruments.
I want to find out if you can also orient yourself in an unknown area of space without instruments.
Medical teams "were working under impossible conditions, some without surgical instruments."
Here was compelling sound created without formal training or expensive instruments.
He was little known because he worked alone, without government support, very poor sources, means and instruments.
There can no longer be an energy policy without financial or other such instruments that make its components possible.
We are flying without instruments and this is not very effective.
Without medical instruments or expertise, there wasn't much he could do for her.
Without special instruments, it was difficult to find the same place twice in the mists.