Three university students in Santiago, Chile, have developed a plant-powered device to charge their mobile phones.
智利圣地亚哥的三名大学生发明了一种能为手机充电的植物供电设备。
Researchers think the solar-powered device could survey aging electrical lines.
研究者认为此太阳能设备能检查老化的电力线。
But Zurovcik, inspired by a burn surgeon's plea, went a step further, designing a human-powered device that applies pressure via a simple bellows pump weighing less than half a pound.
但是佐罗夫西克更进一步，她被一名治疗烧伤的外科医生的恳求所鼓舞，设计了一种人工提供动力的设备，这种设备通过一个简易的、重量不到0.5磅的风箱抽气机产生压力。
Clinical studies have shown that the breath-powered device gets the drug into a patient's blood faster than oral medicine, while requiring a smaller dosage.
临床研究显示，与口服药物相比，这种靠呼吸给药的设备使药物进入血液的速度更快，同时需要的药物剂量也更小。
Preferably, the electric-powered device is useful in skin treatment and delivers mechanical forces on the skin.
较佳地，该电动装置可用于皮肤治疗并可向皮肤传送机械力。
An electric-powered device includes (1) a skin-contactable surface and (2) a body having a water-resistant switch assembly.
一种电动装置包括(1)一可接触皮肤的表面和(2)一本体，该本体具有一防水开关组件。
The system includes a power source and a magnetic coupling element for securing the power supply system to the electrically powered device.
所述系统包括电源和用于将所述供电系统固定于所述电动装置的磁耦合元件。
But this means that we must definitively know whether our handheld wireless, battery-powered device has enough power to complete the transactions.
这也意味着我们要准确地知道，电池供电的无线手持设备是否有足够的电量来完成处理。
Coupling means are provided on the power supply systems and the electrically powered device for ensuring correct mechanical and electrical coupling.
耦合装置被设置在所述供电系统和所述电动装置上以确保正确的机械耦合和电耦合。
It provides a theoretical basis for harvesting the low-frequency vibration energy in environment and designing self-powered device of sensor network.
为采收环境低频振动能量，实现网络传感器自供电装置提供了设计的理论依据。
At present, except the small proportion of the pure natural gas engines, CNG vehicle powered device is basically flexible-fuel engine that can use natural gas or gasoline dividedly.
目前，我国的CNG汽车动力装置，除比例很小的纯天然气发动机之外，基本上是可以分别燃用天然气和汽油的两用燃料发动机。
At present, except the small proportion of the pure natural gas engines, CNG vehicle powered device is basically flexible-fuel engine that can use natural gas or gasoline dividedly.
目前，我国的CNG汽车动力装置，除比例很小的纯天然气发动机之外，基本上是可以分别燃用天然气和汽油的两用燃料发动机。
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