第三章真空技术 Vacuum:(Vebster词典) a:a space absolutely devoid of matter;b:a space partially exhausted (as to the highest degree possible by artificial means (as an air pump);c:a degree of rarefaction below atmospheric pressure 卡西米尔效应 (Casimir effect) 平行金属板 真空涨落第三章 真空技术 Vacuum: (Webster词典) a: a space absolutely devoid of matter；b: a space partially exhausted (as to the highest degree possible) by artificial means (as an air pump)；c: a degree of rarefaction below atmospheric pressure 卡西米尔效应 (Casimir effect)