| 单词 | erg |
| 释义 | erg 1. n. Physics a unit of work or energy, equal to the work done by a force of one dyne when its point of application moves one centimetre in the direction of action of the force. Etymology: Gk ergon work 2. n. (pl. ergs or areg) an area of shifting sand-dunes in the Sahara. Etymology: F f. Arab. ' irj |
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