发布时间:2025-01-22 19:33:21
不是,金属屏蔽是在半导体的外面是铜皮材料,象高压电缆等。保护套是在电缆外是铝或铅,铁制材料,象平常说的铠装电缆。导体、主绝缘、半导体层、屏蔽层、绝缘填充物、铠甲护套、外层塑料保护层。接地时一般通过编制的铜辫用锡焊到屏蔽层上,然后再接到接地极上。
Haier/海尔 XPB90-197BS 双缸洗衣机 9kg 白色-适用对象
2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21我家楼房用的是天燃气管道没用过煤气做饭只用电器买了燃气灶不知道怎样开火或关火都有几个步骤请会
2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21 2025-01-22 19:33:21