asphaltとは何ですか？
asphaltとは何ですか？
- A brownish-black solid or semisolid mixture of bitumens obtained from native deposits or as a petroleum byproduct, used in paving, roofing, and waterproofing.
- Mixed asphalt and crushed stone gravel or sand, used for paving or roofing.
- To pave or coat with asphalt.