oven shell的意思|示意

A knife switch with iron shell shall be installed in the power supply line, which is exclusively for this oven, and the outer plate shall be grounded.

应在供电线路中安装铁壳闸刀开关一只，供此箱专用，并将外壳接地。

Preheat the oven to 375 degrees Fahrenheit. Place dried beans in the center, cover the crust shell with tin foil, and bake for 30 minutes. Remove it from the oven and allow it to cool.

把烤箱预热到华氏375度，把干果放在面皮中央，在面皮上盖上锡纸烤30分钟，然后从烤箱里拿出来冷却。