Those stones may have been used by Neandertals as abrasive tools.

这些浮石可能被尼安德特人制造成研磨。

Spirit and Opportunity were equipped with the latest detectors, including a microscope for imaging mineral structures and a grinding tool for accessing samples from the interiors of rocks.

勇气号和机遇号配备了最新的探测器，包用于成像矿物结构的显微镜和用于从岩石内部获的研磨。

An image shows a block of stone which slowly turns into the famous statue, " The Thinker." TIM: Using tools like a rasp, a hammer, and a chisel, they grind, pound, and chip away all the unwanted parts to slowly reveal the masterpiece within.

一张图片显示了一块石头，它慢慢变成了著名的雕像“思想者”。TIM：他们使用锉刀、锤子和凿子等，研磨、敲打和凿掉所有不需要的部分，慢慢地露出里面的杰作。