pitchstone
基本解释
- n.松脂岩
英汉例句
- Perlite, obsidian and pitchstone are volcanic glass having the same compositions commonly with rhyolite as well as andesite and basalt.
珍珠岩、黑耀岩和松脂岩等玻璃质熔岩以酸性为主,中基性者也常见。 - Keywords vitrified micro-drop;thermal insulating material;imbibition;pitchstone;
玻化微珠;保温材料;膨化;松脂岩; - Porphyritic Pitchstone
n. 斑状松脂岩(岩浆岩)