Red sand stone is low or mediumrock strain in strength, variable and complicated in litho - facies, and easily weathered or weakened.
红砂岩为中低强度岩层、岩相复杂多变，较易风化、软化。
2
Oil companies are drilling into rock layers where every square centimeter (0.16 square inch) is subject to pressure equivalent to the weight of a medium-sized car.
石油公司所开采的岩层上，每平方厘米所承受的压力相当于一辆中等大小的汽车。
3
Recently we heard about the M-disc; which can reportedly store data in a rock-like medium for up to 1,000 years.