Diamonds, high-technology machinery, and agricultural products (fruits and vegetables) are the biggest export earners.
A major short-term obstacle to economic progress, including stepped up foreign investment, is the continuing conflict with Armenia over the ethnic Armenian-dominated region of Nagorno-Karabakh.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "triangle encircled" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.