Posted on Leave a comment

Block and tackle (Physics Dictionary)

Block and tackle : A system of two or more pulleys with a rope or cable threaded between them, usually used to lift or pull heavy loads.

_ ស្វែងរកឬបកប្រែពាក្យផ្សេងទៀតនៅប្រអប់នេះ៖
ឯកសារការងារនិងរៀនគ្រប់ប្រភេទ៖​
---------------------------------------------

Leave a Reply