Posted on Leave a comment

Lever (Science Dictionary)

Lever: A rigid bar used to apply pressure at one point along its length by applying a force (effort) at a second point and turning about a third point or fulcrum.

👇​ ស្វែងរកឯកសាររៀននិងការងារគ្រប់ប្រភេទនៅទីនេះ៖


👇​ ស្វែងរកពាក្យផ្សេងទៀតនៅប្រអប់នេះ៖

Leave a Reply