A general fact or law of nature by virtue of which a machine or instrument operates; a natural law forming the basis of the construction or…
| 单词 | θ214577 | 
| 释义 | society > occupation and work > equipment > machine > 			[noun]		 > science or knowledge of > principle of operation (1)		 principle1770 A general fact or law of nature by virtue of which a machine or instrument operates; a natural law forming the basis of the construction or… | 
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