Vacuum - Wikipedia, the free encyclopedia

Vacuum - Wikipedia, the free encyclopedia

瀏覽:1005
日期:2026-04-18
Vacuum is space that is devoid of matter. The word stems from the Latin adjective vacuus for "vacant" or "void". An approximation to such vacuum is a region with a gaseous pressure much less than atmospheric pressure.[1] Physicists often discuss ideal tes...看更多