白炽灯用久了灯丝变细,是固态的钨升华为钨蒸气;钨丝因升华变细,横截面积变小,长度不变,导致灯丝电阻变大.
故答案为:升华;变大.
本文地址: http://www.goggeous.com/b/1/1134552
文章来源:天狐定制
版权声明:除非特别标注,否则均为本站原创文章,转载时请以链接形式注明文章出处。
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-02 21:47:29职业培训
2025-01-02 21:47:29职业培训
2025-01-02 21:47:28职业培训
2025-01-02 21:47:19职业培训
2025-01-02 21:47:18职业培训
2025-01-02 21:47:18职业培训
2025-01-02 21:47:17职业培训
2025-01-02 21:47:16职业培训
2025-01-02 21:47:15职业培训
2025-01-02 21:47:15职业培训
2024-12-05 22:21职业培训
2024-11-29 03:48职业培训
2024-12-30 00:08职业培训
2024-12-11 17:52职业培训
2025-01-01 07:04职业培训
2024-12-28 03:27职业培训
2024-12-04 04:40职业培训
2025-01-06 19:38职业培训
2024-11-28 19:59职业培训
2024-12-22 08:24职业培训
扫码二维码
获取最新动态