tuff

tuff的英语例句

1. They reported the abnormal uranium content of waters issuing from tuffaceous rocks.

   他们发现,从凝灰岩中流出的水中铀含量反常.

2. The tuffaceous blanketed the entire basin.

   凝灰岩充填着整个盆地.

3. The tuffaceous formation , isolated remnants, are about 200 - 250 ft thick.

   凝灰岩构造的局部残存段的厚度约为 200-250 ?铡?