虽然纳米金属丝尚属试验阶段，但是在未来他们绝对会成为环境和健康探测器上某一微小电路或者其他分子机器。
While nanowires are still in an experimental stage, they may one day be used to link extremely small circuits in environmental and health sensors or other molecular machines.
海伦只能用金属丝来学习正方形、角形和其他的几何图形。
Helen could only learn about squares, triangles and other geometrical forms by making them with wires.
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