如何使用 "tufa" 造句

1. Lava and white ash mixed with floodwaters to form a hard , sun baked layer known as tufa .
火山岩浆和白色火山灰与洪水融合,被阳光烤干,形成坚硬的地层凝灰岩。
2. Formation process of tufa landscape as tour resources .
旅游资源中石灰华景观的形成过程。
3. To intensify propaganda and refineries in the banning of tires tufa , the epa invited the county 's cable tv xianyou tracking reports , played a " crack down on that side deterrence , education and a " role .
要加大对轮胎禁止土法炼油厂宣传,环保局邀请县有线电视仙游跟踪报道,起到了“打击那边威慑,教育和”的作用。
4. A discussion on formation process of tufa landscape as tour resources -- a case study of the tufa in jiuzhaigou , sichuan and huangguoshu , guizhou etc.
论旅游资源中石灰华景观的形态建成过程--以四川九寨沟和贵州黄果树等地石灰华群为例。