土木工程编译词汇M-6-SCIdict学术词典-北... ... 测量标记 Marker，station 石标 Marker，stone 测量标记 Marker，surveying ...
基于4个网页-相关网页
宇航员从月球带回了岩石标本。
Astronauts have brought back specimens of rock from the moon.
这些古老蛇类的化石标本非常稀少，仅有的三个标本的后肢保存完好并可见。
There are few known fossil specimens of these ancient snakes and only three in which the hind limbs are preserved and visible.
毕竟，太阳中任何元素的原子，比如说铁，都比陨石标本的原子要多得多，但这两种物质中铁和硅的比例可能是可以比较的。
After all, the Sun has many more atoms of any element, say iron, than does a meteorite specimen, but the ratios of iron to silicon in the two kinds of matter might be comparable.
应用推荐