One common method uses alternatinglayers of welded wire matting with layers of compacted back-fill earth from the landscaping site.
一个常见的方法是使用电焊交替层与层压实回席子,填补网站的美化地球。
2
Scales on the wings are made up of tiny structures that researchers say resemble the inside of an egg carton, with alternatinglayers of cuticle and air.
他们说,这些蝴蝶翅膀上的鳞片是由微小结构组成的,看起来就像鸡蛋盒的内部,由皮层和空气交替构成。
3
Each crystal structure consists of alternatinglayers of silicon dioxide and a polymer material, so that the spacing between similar layers matches the wavelength of phonons.