n.砂岩;砂石;
例句:
The channel type is very unusual, of all the types of sandstone.
在各类砂岩中,水道砂岩是很特殊的.
Sandstone comes in a wide variety and shades of color.
砂岩有各种各样的颜色和形状.
Sand production in reservoir is one of common problems during the process of sandstone reservoir exploitation.
油层出砂是砂岩油藏开采过程中常见的问题之一.