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工具。

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取样本的研磨工具。

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“”。TIM：他们使用锉刀、锤子和凿子等工具，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。