Those hands were shaping stone tools; tools that represent the first step on the great journey of shaping our world.
那些人手塑造出来的石器工具,那些代表着我们塑造世界伟大征程第一步的工具。
Prehistoric people in southern Africa developed a highly skilled way of shaping stones into sharp-edged tools long before Europeans did, suggested a study released recently.
最近发布的一项研究报告表明,居住在非洲南部的史前人类发明了远胜过欧洲旧石器时代的高超削石方法,此方法可把石头刮削成锋利的器具。
DIE: Various tools or devices for stamping, cutting, or shaping.
模具:各种制造工具,用于冲压,切割或成型。
A new breakthrough is made that informations such as topology, processes and shaping, are difficultly integrated into optimizing design of large components of machine tools in the past.
根据介绍的方法,机床大件结构优化设计中拓扑、工艺以及造型等信息不易介入的难点有了新的突破。
Diamond cup wheels are the efficient tools for fast grinding, rough deburring and smooth shaping and finishing of concrete, stone, and masonry materials.
金刚石磨盘是快速琢磨,修边,造型及修整混凝土,石材,石料的最有效工具,干湿磨均可。
Diamond cup wheels are the efficient tools for fast grinding, rough deburring and smooth shaping and finishing of concrete, stone, and masonry materials.
金刚石磨盘是快速琢磨,修边,造型及修整混凝土,石材,石料的最有效工具,干湿磨均可。
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