Give the English equivalents for the words and word combinations.

1) polymers; 2) chemical compound; 3) alloy; 4) to release; 5) property; 6) to increase; 7) cooling; 8) sensitive to; 9) to direct; 10) ray; 11) remote control; 12) automatic control; 13) to locate; 14) protection; 15) acceleration; 16) to solve an engineering problem; 17) thermoelectric effect.