| 单词 | power source |
| 释义 | power source Lawmakers have been touting possible growth in natural gas as a power source. Houston Chronicle However, the agreement was dependent on the country finding an alternative power source. Times, Sunday Times For a start, if you know how to get to the alarm's battery and power source, you can simply switch it off. Times, Sunday Times A camera trained on the eyes can track blinks, but it’s not a very streamlined tool, and requires an external power source. Smithsonian Mag They were not designed as the main or sole power source. Times,Sunday Times |
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