在癌细胞扩散过程中，细胞表面会施放出化学物质，而研究发现，包括金纳米粒子在内的感应物能被用于检测呼吸中的此类化学物质。
As a cancer grows, the surface of the cells emits chemicals. The research found that sensors - involving gold nanoparticles - could be used to detect these chemicals in the breath.
感应圈还被用于启动助听器植入物，而不需要那烦人的金属丝。
Induction loops are also used to power hearing-aid implants without the need for troublesome wires.
这些梳状物可以感应表面纹理并探测同类释放的微量化学物质。
The combs sense textures of surfaces and detect chemical traces of their own species.
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