制造和利用工具是人类区别于其他动物的重要特征，然而最近英国的一项科学研究却发现，在这一点上人类其实并不孤单，新苏格兰乌鸦天生就具有一种制造和使用工具的能力。
Birds may not be renowned for their intelligence but New Caledonian crows have an instinctive ability to make and use tools, researchers said on Wednesday.
工具和模具制造商，使用各种金属，合金和塑料，修理和修改需要精确尺寸的定做，原型或专用工具，模具，工模，夹具和量具。
Tool and die makers make, repair and modify custom-made, prototype or special tools, dies, jigs, fixtures and gauges using various metals, alloys and plastics which require precise dimensions.
制造和使用工具曾一度被认为是人类所特有的本领，但现在我们了解到，某些种类的动物也会制造和使用工具——尽管这样的动物似乎比较少见。
The manufacture and use of tools was once believed to be uniquely human, but we now know that we share this ability with some animal species, although it seems rare.
制造和使用工具曾一度被认为是人类所特有的本领，但现在我们了解到，某些种类的动物也会制造和使用工具——尽管这样的动物似乎比较少见。
The manufacture and use of tools was once believed to be uniquely human, but we now know that we share this ability with some animal species, although it seems rare.
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