open flat surface
常见例句
- Keep the barbecue pit on a flat surface in an open area. Be sure your outdoor fire extinguisher is close to your barbecue pit.
所以请在一个宽阔的平地上做烧烤，并确保周围有灭火器。 - The heavily dependence of spectra or cospectra on height, which exists in flat, uniform, and open underlying surface, disappears in the complex terrains.
和平坦、均一、开阔下垫面不同的是谱的峰值频率向高频移动，且没有发现近地层具有的谱峰随高度的明显变化关系。 返回 open flat surface