- 释义：
- n.凝灰岩；adj.<美俚>第一流的；
- 例句：
-
Its heat reservoir is composed of Yanshanian granite - porphyry and tuff of Mesozoic.
热储由中生代燕山期花岗斑岩、凝灰岩组成.
换一句
-
The tuff is a kind of predictable and new - type nonmetallic minerals resource.
凝灰岩是一种可预见的新型非金属矿产资源.
换一句
-
Contemporaneous volcanic activity is represented by basic to intermediate lava and tuff.
同时期的火山活动性是由中性熔岩与凝灰岩呈基性而体现出来的.
换一句