When the external environment physics or chemistry signal changes, the physical or chemical properties of the sensitive polymer will have some smartresponse.
当外界环境条件如物理或化学等信号变化时，敏感性高分子的某些物理或化学性质会发生智能的响应性变化。
2
Passengers "shop" by scanning QR - Quick Response - codes of the items they want to buy using their smart phones. These goods are later delivered to their home address.
地铁乘客可通过智能手机扫描商品条码，即商品的快速响应码进行购物，随后，所购商品就会被送到乘客家中。
3
The ultimate point of smart grids, however, is to allow dynamic pricing, with electricity charges fluctuating in response to demand.