求翻译：6、 严禁在客房内私自使用电炉子、电烤箱、电熨斗等电器，如安装其它电器设备，需经酒店安全部及工程部允许并收取费用。是什么意思？

6, in the room without permission is strictly prohibited to use electric stove, electric oven, electric irons and other appliances, such as the installation of other electrical equipment, subject to hotel security department and the Engineering Department to allow for a fee.

In the room 6, * prohibited unauthorized use electric stove, electric oven, electric irons, electrical appliances, such as installation of other electrical equipment, such as required by the Hotel and the engineering department homeland security allows for a fee.

6th, Forbid strictlys using in the guest room, electric oven, electric iron electric appliances and so on the electric stove secretly, if installs other electric appliance equipment, must permits and charges the fee after the hotel safety department and the engineering dept.

6, in the room without permission is strictly prohibited to use electric appliances such as stoves, toasters, irons, such as installing other electrical devices, subject to Hotel Security Department and Engineering Department is open free of charge.

6, in the room without permission is strictly prohibited to use electric appliances such as stoves, toasters, irons, such as installing other electrical devices, subject to Hotel Security Department and Engineering Department is open free of charge.