Refractories for use in coke ovens; mortar for silica and fireclay bricks; requirements and testing.
焦炉耐火材料。硅砖和粘土砖灰浆。要求和试验

Oh, I get it! Microwave ovens emit veryhighfrequency radio waves which penetrate the food instantly.
喔, 我懂了!微波炉会发出很高频率的无线电波, 立即穿透食物。

General rules for tests for thermal ageing properties of thermoplastics in the form of sheet by means of ovens
热塑性塑料热老化试验法通则

Cooking meals with solar power ovens in the Tibetan Plateau is a great example that demonstrates the best use of sunshine.
在西藏高原上使用太阳灶煮饭，可算是充分利用了天赐的阳光资源。